This isn't the "what radicalized you" line of questioning. I always read those as the last straw. I'm more interested in your first steps.
I know everyone's journey is different.
Mine was realizing that despite being a complete asshole, I give a fuck about everyone.
My entire life is an epistemological crisis. And when I think about that I understand why conservativism is so appealing. You get told a bunch of just so stories about how the world is and as long as you never question them then there is no friction
Ignorance is bliss. Maybe an icepick through the nose wouldn't be so bad. I wouldn't mind not paying attention to politics every day and being so angry all the damn time.