Although Jesus didn’t address homosexuality, in fact he really doesn’t say much about sexuality at all. That may not be the best argument, omission is not the same as it’s ok. But however it’s clear that that Jesus didn’t hate anyone, so homosexuals would in that group. And anyone could gain the entrance into the kingdom of heaven through him, so that also would include homosexuals. He pretty much just said the most basic belief is treat each other like yourself due to the fact God love everyone even with transgressions (Sins) against him. NT is pretty clear on one thing, a marriage is between a man and a women forming a covenant before God. So honestly, I don’t get why Christians are upset about state sanction marriages allowing homosexuals, because a piece of paper issued by the state isnt the final authority of marriage for Christians in the Biblical sense
Even though the NT is pretty clear, that homosexuality is a sin, I guess the issue is what does that mean? First the NT is clear that sins are not for us to judge and that all sins are equal in the eyes of God and we are all inherently fallen and sinful. So for me, in according to the NT and the new covenant formed when Jesus was sacrificed, I don’t think the Bible (at least for Christians) is anti gay or gay hating, but the stance is that it’s not for us to judge and God is loving of all no matter what.