The irony lost on you is that's "waste" you fight to keep them from having in their lives.
You’re right I don’t want them raising kids, but there are many hetero couples you could also say the same for...
Childless people (heteros included), generally speaking, have more disposable income for the reasons stated.
Homosexuals often take this extra income and donate it to politicians and causes which advance their lifestyle choice, hence their inordinate political influence.