I don't support discrimination. I am aware some of my fellow conservatives do but I'm not one of those ones. I make sure to look into the heart of a person as well as I can before making a judgment of them. I have friends who practice different religions to me and ones that come from many cultures. I also have friends who are gay as well.
And the Bible is full of scriptures equating homosexuality with sin, yet even though I know it's sin I would never hate on someone just because they are pro-LGBT, because hatred is a sin too.
Which high ranking Republicans are you referring to? Different politicians have left or criticized the party for different reasons. If you have specific examples I'm happy to discuss them. I'm an Aussie so I'm not as up to date on this as you may be.