It's still a misconception at best and an outright lie at worst. Like I said, the real problem is wealth distribution.
When ~10% of the world's population owns ~80% of the wealth, the problem isn't how many people there are.
The problem is greed.
Secondly, does anyone actually says that second example? BTW, gay men are slightly more likely to cheat on their partners while gay women are slightly less likely to, so it sort of evens out.