Okay? that is their opinion. Just like it is your opinion that it should be legal.
"certain unalienable Rights, that among these are
Life, Liberty and the pursuit of Happiness. — That to secure these rights, Governments are instituted among Men, deriving their just powers from the consent of the governed, — That
whenever any Form of Government becomes destructive of these ends, it is the Right of the People to alter or to abolish it, and to institute new Government, laying its foundation on such principles and organizing its powers in such form, as to them shall seem most likely to effect their Safety and Happiness."
I couldn't give less of a forget what their opinion is, if it infringes on the pursuit of happiness and life of others.
wouldn't you agree that finding a partner in life is part of the pursuit of happiness?
they should not be allowed to bring in their bullstuff opinions into the government if they destroy others' pursuits of happiness.