I have quit going to weddings because I am neither married nor interested in marrying, nor dating, nor looking for a date -- and weddings are geared to celebrate Noah's Ark Syndrome.
My sister inadvertently ended up at a big party whose sole point was to watch and celebrate the Gold Medal Hockey Game between the USA and Canada. She holds about the same view of hockey that I hold of marriage, and watching her trying to pretend that she knew or cared what was happening reminded me a lot of myself at weddings.
They're fine for people who like them. For people who don't, they can decline and go racing, like I do.
But, since you hate going to weddings and don't care enough about the people who invite you to them, to go and share in their happiness, by all means, don't go.