I don’t remember where I saw it, but I once learned that gay marriage is a distortion of the way nature is supposed to be. When this becomes commonplace and recognized as legitimate, it causes the derech hatevah that Hashem set up to change. So yes, it can be that gay marriage causes more storms, earthquakes, etc.
Do I know 100% for sure that it caused it? No, but I know it’s a possibility. As for it being our fault, it might be. I did write to my representatives urging them not to support it. I guess I could have done more.
We need to show that we will not support it no matter what, and no matter what other things these people do, as good as it may be. When Bloomberg was trying to get support in NY for it, Agudas Yisrael honored him at their dinner, for all his help funding yeshivos. This must stop! If someone supports it, do not show any honor towards them! Hashem will get us the money we need, but we need to show our opposition to such groups.