I wouldn't call it "the right eating itself", more like the younger men in the group are gaining ground and they tend to be bitter demoralized virgins who are scaring off all the somewhat normal dudes with families with incel and genocide posting. Fuentes isn't gaining support out of nowhere.
Fuentes is gaining support from mostly mainstream news media outlets but for malicious reasons that are meant to hurt the American Right.
If you remember Richard Spencer and the Alt-Right at their peak, out of the many right-wingers that mainstream news media outlets wanted to show off the most it was Richard Spencer.
No other right-winger at the time would get the same level of attention as Richard Spencer which lead many to believe that Richard Spencer glowed in the dark because mainstream news media waited for him to release the spiciest take he had in the chamber on camera and use that to make the rest of the American Right look bad.
A lot of people believed Richard Spencer glowed for this reason but there is also the theory that Spencer was just a retard. Obviously the MSN loved Richard Spencer for saying stupid shit in-front of a microphone because it made the Left look good and hurt the Right a lot with his retarded hot takes.
I imagine it's the same thing with Nick Fuentes where news media outlets are waiting for Fuentes to say the dumbest shit imaginable so they can use that to frame the American Right as being batshit insane.
Richard Spencer and the Alt-Right would collapse after the Unite the Right rally where the Alt-Righters that were dumb enough to participate in that event would haunt Trump, the GOP, and the American Right for the rest of Trump's first term in public office. Unite the Right resulted in many people being injured and one fatality after one of the Alt-Righters drove their Dodge Charger into a crowd of left-wing protesters. From that point on, the Alt-Right was done, cooked. The Alt-Right would get banned from many Internet platforms and by the end of Trump's first term in office, the Alt-Right become a dead political movement.
I imagine the exact same thing will happen to Nick Fuentes and the Groypers. Sooner or later, Nick Fuentes will do something so retarded that it will cause the end of his career as a content creator and cause the Groypers to implode in the same spectacular fashion as the Alt-Right before them.
I see Nick Fuentes as Richard Spencer II: Electric Boogaloo where sooner or later Nick Fuentes will go bonkers and do something so fucking retarded that will lead to the implosion of the Groypers as we know it.