That goes both ways too. And yes, most people lose respect for door mats, regardless of the gender of the doormat or the one losing respect.
Lot of guys are so ratched up about getting female attention to impress other men, they definitely come off as desperate little doormats. You feel sorry for them but are disgusted by them in pretty much equal measure. It's weird, but there it is. They're like a weird combo between Eeyore and Pepe LePew.
The only thing worse is when your parents or friends start pressuring you to give Eeyore LePew a chance and they will straight up say it's only because "at least it's a boyfriend", right? They're basically pimping you out without regard to anything in common, attraction you DON'T have, or whether or not you even want to be fussed with all of that at that particular time. Or the "get back on the horse" speech, which is completely callous toward both the girl in question and the boy.
It really is no wonder we're all such a hot mess with this level of bullshit at every turn.
Everybody's shit here stinks.