> That is what happens, though.
If you genuinely think listening to racists would turn you into a racist I really do encourage you to try it so you learn you don't need to fear hearing bad ideas.
Researchers and activists spend countless hours doing exactly that, listening to what racists are saying, lurking in their online communities, and analyzing their rhetoric and membership. It doesn't turn them into racists. How is it you think that they don't become radicalized? It's not because they have some kind of power that makes them immune to idea viruses.
If you're too afraid to dive deep into racist speech why not start with something a little less unpleasant and attend a religious service of a faith you don't belong to. It's fascinating to do, most places of worship are very welcoming to newcomers, and again, you really won't be magically converted.
Yes, some people who walk into a church do end up becoming members, just like some people who stumble onto racist online communities do end up joining, but in both cases it's not because exposure to the message has infected them. The actual message itself (in both cases) generally isn't terribly convincing, logical, or consistent. It's very often because they offer people who feel alone and lost a place to be accepted, something besides themselves to blame for their troubles, a clear and narrow path for how to move forward, and a comforting narrative and identity.
If you're happy with who you are and how your life is going, have friends/family who support you, and strong convictions you have nothing to fear from listening to people whose views you strongly disagree with and often you'll have a lot to gain from it.