I honestly believe most modern anti-capitalists, especially ones complaining about "late stage capitalism", just lack an understanding of capitalism and blame much deeper issues on it because it's what's trendy to point at and blame for all of society's woes. I'm sure it's hypocritical of me to say this since I'm not very well educated and also lack a complete understanding of it, but, the sort of people I'm complaining about aren't particularly well educated on the subject either. Regurgitating twitter memes is no replacement for a degree in economics or seriously reading books and essays on the subject.

Anti-capitalism is a meme, literally. It's a real ideology but claiming to be anti-capitalist is a popular meme now, it's a popular way of virtue signalling, and I do not believe that most self proclaimed anti-capitalists actually understand (or perhaps even care about) what values they're claiming to hold. It's a trendy belief to claim to hold, and claiming to hold it raises your social capital. It's one of those things where, when someone claims to support it, you have no idea if they genuinely believe it or if they just saw someone say "You're a bad person if you don't support this" and thought "I'm not a bad person, so I should support this", or even "I don't want people to think I'm a bad person, I should say that I support this".

To clarify, I don't think this is something unique to anti-capitalism, I think that a tonne of beliefs have this issue.