The problem isn't the purity spiraling, but rather the fact that they have no basis upon which to do so. The "dissident right" or whatever you want to call it has always been attractive to the following types of people: Deranged loners looking for other deranged loners, homosexuals, sadists and pedophiles, luciferian types (Dicky Thpenther,) and so on. The reason for this is that the movements are fringe, and so they attract fringe people who can't cut it in other social circles -- and on top of that, when you position yourself such to praise Hitler and other "historical villains," you bring in people from the dark underbelly of the world too who see themselves as villains and identify with characters like the Joker and Patrick Bateman and other psychopaths. The right has a villain complex that causes it to implode, and the role of a proper Christian nationalist movement should be to introduce a strong moral basis to identify and oust these people, since the atheist/neopagan precepts do not have a sufficient moral compass to do so. The obvious issue with keeping these types around or trying to sweep up for their degeneracy is that it becomes the face of the movement, and the serious degenerates pose a PR problem that alienates normal people. When characters like Ali Alexander and Milo are your "big guys," (for you) then it gives us all a bad name. Purity spiraling is really just good housekeeping and we need people to do it so the movement won't be full of pedoforks. It's really that simple.
Unfortunately, Nick's purity spiraling was pure projection and maybe (like Milo) a subversion fetish. Your post has shown how bad a name it gives Christian nationalism, but contrariwise this should prove to you that good housekeeping is an utmost necessity, and it starts at the very top. Nick is a shitty person to have for a leader. You need serious principled people who put ideals over their egos and personal well being who don't have myriad gay skeletons in the closet who won't jettison everything just to get some infamy or "political connections." Sadly such people don't seek positions of power. Usually, it's psychopaths and narcissists who deliberately seek power, especially to exploit niches like this one since they tend to be full of desperate people looking for a few drops of copium. Maybe some day we'll get some proper organization with a decent leader who doesn't suck dicks.
Alt-Right 2.0 was a failure for similar reasons as AF to be honest. The people involved were spineless, unprincipled, grifting, or unbalanced in various ways. Matt Heimbach and the TWP is a great example, since the guy beat his wife or something like that. Richard Spencer is a closeted faggot, probably controlled opposition, and is a luciferian (he kept talking positively about Faustianism. Faust is a character who made a deal with the devil for immortality, Spencer idolized Nietzsche, who put self-will and power above all morality and love, etc) Cvill for wignat 2.0 is analogous to STS for the gaypers -- it was a horrendous mess that led to mass persecution of the right wing and federal involvement. It was a retard rally par excellance. The last remainder of that era is TRS with (((Peinovich))) and his crew. Last time I checked, there was a controversy over funding and a general untrustworthyness within the NJP, so that's out too. So what's the alternative? Why sweep up for something that was just as bad? Because there is no other alternative? That's a classic way to justify bad decisions. Just don't make bad decisions. WN 2.0 is dead, the house of the gaypers is burning down as we speak, Rockwell isn't coming back from the dead, so we're out of options. It's tough, but what are you gonna do? Maybe the right will get its head on straight eventually. All there is to do is wait, and to keep "punching right," attacking these fake movements, spineless people, and ousting these sick degenerates. Whoever is left is good people.