The LGBT+ community must be protected from threats from the state. This can be achieved only by public control of the state, that is, democracy has no alternative.
The LGBT+ community must be protected from threats from society. This can be achieved with the help of the state and ensuring their human rights despite the wishes of the capricious crowd. Therefore, liberalism is without alternative.
I believe that liberal democracy is the only possible system in which the rights of LGBT+ people will be fully respected.