Ake, supporting a particular football team, indeed supporting one at all is a matter of choice. Indeed given the conduct widely associated with football supporters involving oneself with them might be argued to be a voluntary assumption of risk.

Even a choice of religion is a choice - a voluntary action.

One's sexual preference is no more a matter of choice than the colour of one's skin.

The idea that we are in a "gay culture" or that homosexuality (as a sexual preference) is or even can be promoted is fanciful. Your suggestions of such things merely underline your fear and bigotry.