Nick Fuentes (and Vaush and Destiny) are all brainlets. They're IQ 115-130 (probably closer to the 130 mark) so they're bright but NOT gifted individuals. They're above midwits aka IQ 85-115 individuals so they seem smart at first but once scratch the surface, you'll realize they aren't that intelligent because they're mostly repeating the ideas of other people and in the case of Nick Fuentes, that is ideas on /pol/ from people such as Jared Taylor or Mike Enoch.
So to answer your question, "What happened to Nick Fuentes?" He hit a brick wall. He got hyped-up on /pol/ talking points, went IRL and got called a racist, sexist, bigot, white supremacist and he didn't know how to respond because no one has solved these problems. On the internet people can ironically or unironically say, "Ya, I'm a racist, so what?" but that doesn't work IRL because most people think you're the devil. The straw that broke the camel's back was his Twitter ban. At that point, Nick's only unique idea was "optics" and that failed to prevent his banning. So Nick got blackpilled. He stopped caring about optics and started praising his based blacks because he didn't know what else to do to deal with the racist and white supremacist attacks; despite gaining his initial success by attacking Charlie Kirk for the same virtue signaling and pandering. So that was the core issue and the other issues like arrested development or narcissism make things worse.
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