Dear English-Speaking World:
"Bitching," as a synonym for "complaining," is misogynistic bullshit. Women—and the feminine men you also like to call "bitches"—are not the only human beings who complain.
There are, literally, dozens of appropriate words available for your use to convey the same idea—complain, whine, grumble, moan, grouse, groan, whinge, gripe, object, bellyache, bother, fuss, yap, wail, etc.—that do not unavoidably smear feminine-identified people by necessarily implying that they've got the market cornered on complaining.
By necessarily implying that bitches bitch while men endure.
And it's misogynistic nonsense at that.
Knock it the fuck off.