Homosexuality tends to lower reproductive success and since there is considerable evidence that human sexual orientation is genetically influenced, it's unclear how it is maintained in the population at a relatively high frequency. There are many possible explanations such as genes predisposing to homosexuality also conferring advantage in heterosexual. 
Hi @noblewalter I see you are using 100% power up option. You might not want to do that. I wrote a detailed post explaining why, you should read it.
DON'T USE 100% POWER UP - You Will Lose a Lot of Money
thank me later ;)