I disagree. Most men if approached by an awkward unattractive woman at a bar will at least be polite and have a normal conversation even if they're not interested. Whereas women will often outright ignore or even act hostile towards an awkward unattractive man trying to strike a conversation.

Men are expected to treat women courteously, whereas women aren't held to the same standard. A woman can treat a man like a disposable garbage bag and it doesn't have the same stigma as a man doing the same to a woman.