You still haven’t made a case for why gender roles are good other than that most cultures have them. And you haven’t explained what you even think they are since you’ve made it clear that they aren’t jobs.
In other words, you don’t know what you’re talking about. You just feel threatened by “feminists.” They want a flat social dynamic rather than a hierarchy, something that a socialist ought to be in favor of, but since that might mean that you actually lose some unearned place in the pecking order simply for being born with a dick, it makes you vaguely uncomfortable.