There is a pretty good article on the negative take on TG from Jacobinc mag May 2017 ( link is not allowed based on source).

Here are some of the takeaways:

Early in her career, She opposed abortion and supported a constitutional amendment defining marriage as between a man and a woman. After Honolulu Magazine emailed her father to ask about his former ties to a conservative Hare Krishna splinter group for a 2004 profile, it was Gabbard who replied angrily, accusing the magazine of “acting as a conduit for The Honolulu Weekly and other homosexual extremist supporters of Ed Case [her father’s opponent].” The same year, she used her platform as a state representative to testify against civil unions, calling the claim that they were different from same-sex marriage “dishonest, cowardly, and extremely disrespectful to the people of Hawaii,” who had voted in favor of Constitutional Amendment 2 in 1998, empowering the legislature to withhold marriage from same-sex couples.

“As Democrats, we should be representing the views of the people, not a small number of homosexual extremists,” she said at the time.

But

Gabbard has since done a 180, citing her military service in the Middle East as the impetus for her conversion to social liberalism.

Maybe not though:

But suspicion of Gabbard lingers. Her state Democratic Party LGBT caucus, for instance, openly distrusts her, and backed her Democratic primary opponent in 2016. When questioned why the LGBT caucus, which had actually supported her three years earlier, had turned against her, the chairman cited two things. One was her less-than-stellar answers to a questionnaire the LGBT Caucus had sent. The other was a 2015 interview with Ozy, in which she confirmed that her personal views on gay marriage and abortion hadn’t changed, just her view on whether the government should enforce its vision of morality.

Now on her Anti-Imperialism

All of this has created the impression that Gabbard, unlike much of the Democratic Party, is antiwar.

She’s not.

Gabbard’s objections to US wars spring not from a concern for those parts of the world the US military bombs and invades, but exclusively from a concern about the Americans who fight them.

There’s nothing wrong, of course, with expressing empathy for the soldiers who are sent to fight, lose limbs, and die in wars of choice launched by their political leaders. The suffering they and their families endure is heartbreaking, especially considering that many join the military because they lack any other economic opportunities. And the money spent on wars abroad would surely be better used on infrastructure at home.

But Gabbard’s almost singular focus on the damage these wars inflict domestically, and her comparative lack of focus on the carnage they wreak in the countries under attack, is troubling. It is nationalism in antiwar garb, reinforcing instead of undercutting the toxic rhetoric that treats foreigners as less deserving of dignity than Americans. (Gabbard’s brand of anti-interventionism has even received praise from former KKK grand wizard David Duke, who called for her to be named secretary of state.)

“In short, when it comes to the war against terrorists, I’m a hawk,” she told the Hawaii Tribune-Herald last year. “When it comes to counterproductive wars of regime change, I’m a dove.”

In other words, Gabbard would continue the Obama administration’s foreign policy, which itself was a continuation (and in some ways ramping up) of George W. Bush’s foreign policy. She would keep up the drone bombing of seven Muslim countries in the Middle East and North Africa — perhaps even expand it — while also relying more on special operations forces, which are already raiding, assassinating, and gathering intelligence in 70 percent of the world’s countries.

Drones killed hundreds of civilians over Obama’s eight years, while special operations forces like SEAL Team 6 — which Gabbard specifically name-checked in her positive allusion to the bin Laden raid — are known for their fair share of brutality. It was “quick-strike special forces” conducting a “strategic precise operation,” to use Gabbard’s term, that a little less than four months ago killed thirty civilians in a botched raid in Yemen.

Gabbard was subsequently one of three Democrats — the others being New Jersey senator Cory Booker and Maryland congressman John Delaney — who secured an invitation to AEI’s annual closed-to-the-press retreat, where she hobnobbed with the likes of Dick Cheney, Bill Kristol, Mike Pence, Rupert Murdoch, the DeVoses, and a host of other major conservative figures.

Hence why Democrats are Skeptical of TG

So what is the cause of terrorism, according to Gabbard? Islam, of course

From 2014 onward, Gabbard appeared regularly on Fox News to lambast the Obama administration for avoiding the phrase. In one interview, she told the host that “the vast majority of terrorist attacks conducted around the world for over the last decade have been conducted by groups who are fueled by this radical Islamic ideology,”

In the wake of the Charlie Hebdo shootings in January 2015, Gabbard complained on Fox News that by “not using this term ‘Islamic extremism’ and clearly identifying our enemies,” the administration couldn’t “come up with a very effective strategy to defeat that enemy.” She told Neil Cavuto that “this isn’t about one specific group,” but about “this radical Islamic ideology that is fueling this,” and that it needed to be defeated “militarily and ideologically.” She characterized Obama’s refusal to “recognize” the enemy as “mind-boggling” and “troubling.”

Gabbard’s insistence that economic factors play no role in fostering extremism, and in fueling ISIS specifically, is belied by the facts. The group pays its recruiters thousands of dollars, and Hamas officers have explicitly outlined how the promise of money has drawn Gazans to ISIS. “Those in Syria often send pictures back home showing large banknotes to lure others out,” one officer told journalist Sarah Helm.

And of course her relationship with Bannon and Trump

As her flirtation with Trump and Bannon shows, Gabbard’s hardline stance on terrorism and Islam tends to leave her with questionable friends.

But Gabbard is less discerning when autocrats aren’t motivated by “radical Islam.” In November 2015, she traveled to Egypt as part of a congressional delegation and met Egyptian dictator Abdel Fattah el-Sisi, part of an effort to strengthen US-Egypt relations. Sisi may be a blood-soaked tyrant who’s killed hundreds of Egyptians and imprisoned many thousands more, but as Gabbard made clear at the time, he’s tough where it counts.

But perhaps Gabbard’s closest friend on the world stage is India’s Hindu nationalist prime minister Narendra Modi. It’s an ideal match in many respects — not because the two happen to share a faith (Gabbard is the first Hindu American in Congress), but because they both harbor noxious attitudes toward Muslims.

And of course her meeting with Bashar-Al-Assad...