If you think that a society that actively harassed and persecuted homosexuals would spontaneously take pity on them, we have such different understandings on the world that debate can't be productive.

Then I'm disappointed that you would think that way. Change is the only constant, in people, in societies, in politics. Change can be spontaneous, but more of then than not, it is slow, gradual, boring, but still change nonetheless. Would you concede to that?