Yeah while I think religion is bad for society because it's been used as a cause for war, intolerance and hate throughout the centuries, destroying it isn't the answer. Some people just have the ingrained wish to obey a higher being and are willing to go to great lengths to make one up. Then people start forming rulesets around it in their favour to gain power, writing holy books etc.

Trying to destroy religion only hides it and makes it harder and more extremist. You can see this in for example the soviet union that repressed religion and turned into a LGBT-hating bastion of orthodoxism after it collapsed.

I think enforcing a baseline (LGBT rights as foundational human rights) and a clear split between state and religion is the only way, and from there try to mellow it down as much as possible.

I've been wondering why most religions are so hard anti-LGBT by the way. I think it's because of evolution: Successful religions create a lot of offspring through indoctrination. The Catholics for example make having babies almost a holy goal. And LGBT couples were not able to conceive until recently.