Because marriage is an obsolete institution, an anachronism. There is no point in anyone getting married any more.
There is no good reason. Some people are simply full of hate for what they don't understand so they make up ideas and beliefs to justify their own ignorance
Its not hate, stop playing the victim, there are other fundamental reasons people oppose it and im sick of hearing how unfair it is. Get over it life is unfair to all of us at some point.
It's a triple negative, my head exploded o.O
People should be allowed to marry whom ever they want, God will still love them.
Well maybe read the bible a little more. God isn't in favour of it.