Women being more likely to leave than men because of a policy does not inherently make that policy sexist. You could say the same thing about a policy that requires police officers in full patrol kit be able to scale an 8' wall or drag a certain amount of weight a certain distance in a given time frame - that instituting that policy in a department that didn't have it previously would result in more women leaving than men doesn't make the policy sexist unless it's both actually unnecessary for the job and implementation with sexist intent.
Those meme-level DITL and older hustle culture stuff are two completely different things, targeting different audiences, and using different methods, so it makes sense that people would have two different reactions to them, even if you think both of them are stupid?
Are there any reports of someone moving their company from WFH to full RTO in order to get women writ large to leave their company? I think it's much more likely that capital owners just want their building full so they don't lose their investments, business owners and executives don't like WFH for various reasons including the extremely overblown risk of overemployment, managers on average want to micromanage and find it easier in-office, and there's no public health backstop to justify WFH like there was 5 years ago.
Separately but related, I don't think there's anything wrong with a factory worker getting paid $18/hr watching someone spread 2 hours of work over 7 hours in the office with two catered meals plus snacks and making jokes about "email jobs" not being real. I probably watched all the DITL things that went truly viral and the comments were never any more sexist than any other viral video on the internet.