The questionable views we’re talking about here are… Let’s just say we’re not talking about milquetoast stuff like “we should be a bit stricter with immigration” or “lower taxes on the rich”, but views that are far, far outside of the mainstream in most places in the world.
I think there’s also an issue that many people got radicalized through internet rabbitholes and the like in recent years. I assume you need to already have some compatible views, but there’s a big difference between “a bit racist” and “full on nazi”. It’s a matter of which tendencies get reinforced and what biased information you’re being fed - many of those people who were a bit racist 15 years ago could have went the completely opposite direction if they had been fed different content.