There were a few things.

In school, the Jews and their terrible plight were shoved down our throats constantly. I wasn't, "Jew aware" per se, but I had some questions. I remember asking my; history, English, religion, and science (yes, they talked about the holocaust in my biology class for whatever reason), "why do people hate the Jews?" I was curious, because there had to be a reason, right? Every response I got was either, "I don't know" or "people just don't like them due to their differences."

You see, I couldn't just accept that. These seemed like shallow explanations. What differences?

Around the same time, I followed many online liberal communities right before they turned blatantly anti-White. Never liked the homos though, but other than that, I was a good, little liberal. Well, kind of. I would question the narrative alot, which led to me getting banned for what I thought were pretty legitimate questions. I was called a Nazi and a bigot for asking stuff like: "isn't a million migrants a year too much?" and "why should non-Whites get preferential treatment? Is that not fair?"

Eventually, this led me to r/debatealtright, and I was shocked. These weren't the deplorable, terrible people I was told they were. They were intelligent and truthful. Initially I debated as a lefty, many times asking disingenuous and loaded questions, but I would get blown out of the water each time. Literally a week later, I was converted and the world suddenly made much more sense.