I wasn't ever really a TRA, like I never promoted it on social media or anything, but I did buy into the ideology when I first heard about it since I assumed at first that it was progressive and advocating for a truly marginalized group. I remember I even corrected people a couple times about using the 'wrong' pronouns to refer to a transgender person because "It'S jUsT PoLiTe" (in my defense, I was thirteen), even though preferred pronouns take a lot of mental effort to use lol. I had a lot of cognitive dissonance about the ideology since there were a lot of contradictions, especially when it came to sexism, and I never bought that you could literally change sex or the "'genital preferences' are problematic" bullshit, but I did at first buy into the concept of gender identity existing but being distinct from sex and that transgender people were a marginalized group. I stopped believing in all that a few years ago after multiple peers became trans or non-binary, and I noticed that the conservatives I knew accepted transgenderism more readily than homosexuality/bisexuality, and saw the absurdity of what was going on with mainstream feminism pretending that it was gender identity rather than sex that was the reason women were subject to misogyny, and was aware of the fact that transgender people didn't exist until a few decades ago so the claims of there being an entrenched prejudice against them made no sense, but I just stayed out of it as much as I could. It wasn't until a few months ago though that I started thinking about and looking into it more deeply and realized the full extent of the harm being done by the ideology.