Peterson replied, “It’s very difficult to understand how demoralized people are, and certainly, many young men are in that category. They don’t know how to make themselves attractive to women who tend to be picky, and rightly so.

The issue isn't that women are picky per se. It's that they're picky about things that are at best orthogonal to being a good person/partner. If women actually selected for the things that they claim to want incels wouldn't be a thing because our society is mass producing the "sensitive man who's in touch with his feelings" that women claim to want but actually despise.

he widespread mocking, bullying, meme-ifying, and othering of those who are lonely needs to be curbed – and a supportive approach towards self-improvement needs to become the norm.

This is the bread and butter of what the Manosphere does and feminists call it toxic and censor it. They want those men dead, plain and simple. Preferably after they extract all their resources.

incels are unlikely to respond easily to therapeutic intervention, which they may see as a means to control them and subjugate them into becoming docile “beta” males

Yeah, they see through your shit because they're not the retards that you make them out to be. Feminists push therapy on men for exactly that reason. Non-feminist men are not going believe a movement that's dedicated to destroying our lives all the sudden cares about our well being with no ulterior motive. As self destructive as the incels' response to their situation is, I can at least respect that they know that something is fucked up. That's more than can be said of male feminists, and they aren't getting any more pussy than the incels.