Really, the queers are going to breed themselves, out of existence? How? They are sociopaths- thus, need producers to feed, upon. Darwin may provide an excuse tempore- we provide the reality. Sociopaths are well accommodated, by reasonable idiots. Sad story of Life. Please think a bit more...
Of course they can feed on the healthy group body and there will be those ready to assist them.
The main thrust (excuse the pun) of the Gay community revolves around sex and sexual freedoms, sexual relations, sexual encounters, etc. The concept of the family, family building and couples living together (again, for sex) is secondary. They always harp on the physical sex aspects more than any other factor and given the fact that there can be no direct reproduction, doesn't that consign them, over time to the dust bins of human survival...as procreators, which the can't do?