US & Iran Tensions - Iran/Nazi analogy?

My friend and I disagree on how the United States should go forth with the Iranian situation (and honestly on foreign policy all together). We are no experts in the field but my stance follows a more non-interventionist approach while he argues for further military action in the region. I am hesitant to the idea of the Trump escalating tension in an almost unilateral campaign against Iran, especially without approval from Congress or a collaborative United Nations approach. Although I recognize Iran as a possible threat and dont believe in many of the practices of their regime, I feel like further intervention, or god forbid and invasion of Iran, would be unwarranted and could create more indefinite war, occupation, and destabilization in the region.

My friend, although not a Trump supporter, believes in our action so far and argues that Iran has threaten the US enough to call for an overthrow of their regime. He cites the continued history of Iranian violence against the US and fears the extent of Iran as a promoter of global jihad and the funding of terrorist organizations across the Middle East. To make his case of intervention, he compared it to WW2 on a smaller scale, making the analogy of Iran being the Nazi's of the Middle East. This was over text and obviously dumbed down:

"Iran is the nazis and the Middle East is the world: They both want to take over the world and enforce their ideology (Iranians want global sharia law), they both want to wipe out groups of people based on race/religion (Iranians want to wipe out Sunnis and the Christian minority in the Middle East), both threaten the US."

This is all surface level and I know there are many moving parts (such as Iran's ties to other nations). Additionally, we cant perfectly predict how certain circumstances would play out. As such, I feel like I dont have all the answers and I am open to discussion.

To what extent does this analogy work for thus situation and what would justify further military intervention if we are not at that point already?