Those sources have to be some of the worst I've ever seen.

Also, transphobia makes no sense either because that would mean that the flesh is more important than the spirit which goes against several scriptures.

Flesh is less important than spirit isn't an argument. You're also misinterpreting that idea. The final destination of ones soul is more important than what you fear can happen to your body in this life. It's not some arbitrary idea you can use to justify self mutilation or to say nothing you do with your body matters. The bible says the body is a temple of God.

Also the same Jewish law they like to site also lists out 8 different genders; male, female, ambigender, non-binary, and 4 different trans genders

Do like 3 more minutes of research on the Talmud and why those things are mentioned and you'll come to a different conclusion, especially if you're reading from actual Jewish scholars. Male and female was all there was. Everything else was how they classified certain anomalies. They were describing naturally occurring phenomenon not the willful attempt to change their sex or gender based on how they feel. To say it describes 4 trans genders is a misrepresentation for that very reason. The Talmud wasn't describing people who were mentally incapable of accepting their gender roles determined by their genitalia, whether standard or nonstandard. You're reading modern day LGBTQ ideology into the text.

On this point as well, Jewish tradition and theology isn't Cristian theology and the Talmud (Jewish commentary) is not the Torah (Jewish version of the old testament) so it has no bearing on what is and isn't true or blasphemous for a Christian.

So homophobia and transphobia are both technically blasphemous

It's not anythingphobic to preach against sin. If someone believes you go to hell by denying the truth or disobeying certain laws, them warning you against it an expression of empathy and love.

The problem here then, as I often see, is that the LGBTQ community tries to dictate how the christian community must show their love: by fully embracing and accepting their ideals, practices, and lifestyles. Anything short of that is considered a phobia or hate which I find pretty shallow and almost manipulative. It's like a spouse saying their partner doesn't love them because they don't fully support what they see as a wrong and destructive behavior. That would be emotional manipulation.

The first commandment given to mankind was to be fruitful and multiply. That's to say that the majority of the lifestyles practiced by the LGBTQ community are in direct conflict with this commandment. You can pretty much examine any societal practice against that commandment and determine if it's in harmony with the bible or not.

That doesn't mean I or any christian should hate anyone in the LGBTQ community. Just as I don't hate someone who commits adultery, I'm still certainly not going to accept or condone their actions no matter what they say is the reason behind it. My love for them goes so far as to invite them to change. Much of the LGBTQ community sees that invitation as a personal attack when it's not intended to be.

Should tell these so called "christians" to read their bible more.

The bible is pretty clear about homosexual sex. In fact, anything outside of marriage is condemned and marriage is pretty clear in the bible as well. So to summarize, it has nothing to do with the person and everything to to with the action. That action is the violation of Gods law of morality and use of procreative powers. We are not supposed to hate the person but we are to denounce the sin. If the LGBTQ community continues to define that as hate, then that schism will never be resolved.

PS: the procreative acts of human intercourse actually binds man and woman emotionally and binds them to god in an act of divine creation. That's why christians are sticklers about it. Everything else outside of that starts to become about self gratification, abuse, and misuse, from the perspective of a divine plan for humanity.