There is an element of truth to that. A lot of "traditional" masculinity is indeed shit. It's all about being destructive and self-destructive, it's about putting other men down in order to impress women, hurt other men in order to get resources you can give to women. "Traditional" masculinity is brah culture and lad humour, it's anti-art, anti-health, anti-culture, it's the "Reading is for faggots"-mentality. Just beer and bacon and throwing each other under the bus in order to impress women. And yes, swallowing one's feelings and desires and always being panicky about appearing gay IS toxic and harmful. Toxic masculinity is tied to toxic femininity. And yes, a lot of incels suffer from this toxic shit and it would be better they'd commit suicide soon instead of harming low-status men with their tough-guy-far-right bullshit.