Again, a false statement. If it were a receive gene it would easily be passed on. As noted, it is possible for a couple with four kids to have three kids that poses the gene. All three would be carriers though only two would be likely to pass it on as the third would most likely not reproduce.Since homosexuals, by definition, don't reproduce genetically, at some point, a long time ago, the homo gene would have ceased to be carried.
If they choose to reproduce genetically then they prove that homosexuality is a choice.