Why do feminists complain about men hitting on them in the gym, at work, in the street, etc? If they simply advertised the fact that they're feminists then men would leave them alone.

This seems like such a pointless complaint to me whenever I hear feminists going on about it.

No guy with any self-respect wants to date a feminist. So if they simply showed that they are feminists, say by having a #KillAllMen coffee mug, wearing a feminist t-shirt or doing the brightly-colored (aposematic) hair thing, then men would all steer clear of them.

Well, apart from rapey male feminists that is. But they're feminism's problem, not ours. They're barely even men, after all.