Homosexuals won't enter heaven, it says so on the bible, you can go ahead and be one, but if your religious, and a gay at the same time.. Your plans to goto heaven, have just been a true Epic FAIL!
Actually there's several. Also, it always end up with circular discussions. Non-religious people typically see nothing wrong with it, or if they do, can be poked at with an "animals do homosexual things too" to shush. Religious people don't always agree on the interpretation of their texts, but if they deem it wrong due to said text, they're highly unlikely to change their opinions.
Anywho.
This is being discussed in other places. And nothing new ever seems to come up. I actually love to discuss it, but too many threads about more or less the same thing.