I meant tolerance in the real sense of the term, which means that she probably wants homosexuals treated with dignity and respect. Many of the participants and attendees at a rally like the one depicted truly believe that is what they are there for and nothing more. So how you going to convince them? Insisting they are evil only adds fuel to their own argument that homos need protection from abuse.
Replace homosexuals with "thieves" or "missionaries" or "rapists". How do you convince someone that the law written on their hearts is correct? They already know Hashem is disgusted by their faces, they have to act up alot now to cover their shame. I've talked to hundreds of such people claiming to be married to Hashem who are whores. Give the nicest arguments in the calmest way and explain the halacha and the effect of this sin or go to the tough side and explain why a Jew must be willing to kill himself rather than commit this sin, and that such a person has no share in the world to come, any food he makes is completely treif, you can't respond to his brachot, and if he's a witness for a marriage, you're not married and a beis din can't listen to his rotten tongue. Middle easy hard, whichever way, they will simply curse you, because they're religious Jews, they know how evil this abomination is. There are crowds of people that love them now, and they lie to themselves to stave off the automatic suicidal thoughts that will follow whoring yourself while you're supposed to be with Hashem, "we are making people love Torah", they lie. The most common response is "are we still talking about this in the current year", which by the same logic, throw all Torah on the fire G-d forbid, why not eat flesh torn from living animals too, very advanced machines in America and they give it drugs not to suffer. Are we still talking about having a soul in the current year?
You're never going to convince a whore that whoring is bad, she knows, it's for the money. I have no use for such an animal, I'll find a good Jew to help instead, let them burn with their pet abominations for trying to put a kosher stamp on it.