@ BIMAAC: I agree: Like seems to attract like - and I don't have a real problem with that because it filters out a tonne of useless idiots when discerning people are looking for life-long partners.
I won't condemn the whole manosphere or every incel for being guilty of shallowness. I think some aren't so much shallow as merely...well, they went looking for ways to find a partner after being shot down over one petty flaw or another - this shit seems to happen to people of both sexes a lot, especially in their teens and early 20s.
They're generally young, and they they come across these embittered old dinosaurs who whine and pule about how their ex-wives had too many girlfriends and then took them to the cleaners in the divorce (blah blah blah...)
It's actually true sometimes - that men get shafted in family court is hardly a secret - but most of the guys who tell stories like that are alone because they're absolutely insufferable; their wives hung out with girlfriends to avoid the appearance of cheating while also avoiding their husbands.
Mix the clueless young with the old failures and you get the manosphere as it exists right now.
NOTE TO THE CLUELESS YOUNG:
Women and men are the same species. Both genders also like sex. Ask 100 women for no-strings attached sex while clubbing, and ten of them will likely say, sure, no matter what the hell you look like (because, once again, women also like sex).
No matter who or what you are, if you want to get fucked by random women, you can.
When you're teens or early 20-somethings, however, your brains aren't even finished developing and yes, you will be shot down for stupid reasons by hot girls who go on to date total losers. It goes with the territory of not being fully developed - the idiocy displayed sometimes by even the most sober-minded teenagers.
But MOST of the "hot girls" grow up...and the vast majority of those grown ups, like their male counterparts, will be average women. The desire you feel to nail the chick with the rockin' hot bod will never quite pass, but the urgency to find somewhere...anywhere...to stick it will pass and at that point you won't be looking for the girl with perkiest tits as a long-term partner because it turns out she smokes meth or has some other god-awful compulsion that was either unapparent or not annoying in high school (but that will drive you fucking crazy as an adult).
That isn't to say "hot girls" are shallow...but kids tend to be short-term thinkers no matter what they look like. For you see, even if you are the most disgusting thing that has ever slithered across the face of the Earth, there is a girl somewhere nearby that likes you. Being a short-term thinker, you may not like her back because she, too, appears - as I do; (Oh, I promise) - to have crawled out of some nearby sewer periodically emerging to do things like attend school or go to work. Her charms may become more apparent to you, however, when you realise the girl of your dreams, who won't give you the time of day, also can't hold a thought in her head for more than three seconds.
You see, I know someone who used to be an incel: He got the girl - a 25-year-old who had never had sex (and had so little interest in it she was sure she was asexual) with a university degree who paid half the bills when he lost his job two weeks after they first started dating. He got to KEEP the girl for years and years and still has her, because he...here's one secret...is not a fucking douchebag. They both have flaws. They both know about each other's flaws because they've smelled each other's morning breath every morning for decades....and else: Vomit, feces, urine, saliva, semen, blood, bile...you'll get to see your spouse do it all if you marry.