Why does it anger and scares the bejesus out of the LGTB community if someone prominent like actress Cynthia Nixon says they chose to be gay?

If a prominent person who lived as a heterosexual drops the bomb that they are gay, but throughout all the time passed they lived ”straight” because they forced themselves to be ”normal”, it is all good. If a prominent person like actress Cynthia Nixon that they chose to be gay, because of men that were dogs, or whatever reason, the gay community turns as whiter as a bone and pressures the person to sex up their statement to appear they did not chose as they said. What if they really did choose to be gay, why would the gay community want them to lie about it? It won’t harm them from having what they have.