I've got tolerance for things non-Christian, I just don't have to agree with them.
As to gay marriage, though, I don't agree with gay marriage as a church sanctioned ceremony, but it doesn't bother me as a civil union. In fact I THINK gay people SHOULD have the equal rights to be able to make decisions for their partners when it comes to things like health care decisions, burial plans, get insurance benefits. I have a problem when it's termed "marriage" since that, in my mind, is a religious ceremony between a man and a woman. If two gay people want to make their union a legally binding civil covenant, go right ahead. Why? It doesn't affect my life one bit.
In my business, I have seen the effects of the law come down on the surviving partner negatively and I felt badly for them. When a partner can't make funeral plans for someone they love because the law says "the next of kin" has the legal right to do so, and the next of kin is a parent who despises the partner, it puts me as the funeral director in a tough spot. I have to obey the law and let the parents (or siblings, if there are no parents) decide what to do, regardless of what the partner's wishes are, eventhough THEY usually know what the deceased's wishes are.
I had a service about a year and a half ago where I had to get the county coroner involved to declare the deceased a county indigent (eventhough he wasn't) in order to avoid the non-communicative siblings from bring able to come in and take charge of the funeral plans and let the partner plan the funeral. If gay people were able to have some sort of civil union, things like this wouldn't happen.
The same goes with health care. When people go into the hospital, hospitals can't release any information to people who are not the "next of kin." The next of kin has to make all the decision. The whole thing is garbage.
What two consenting adults do in their bedroom (or any other room in the house) doesn't bother me as long as it doesn't involve minors or animals. Keep it behind closed doors and have fun. I'm not gonna judge you for it.
I don't think that homosexuality is the down fall of the American government. I don't think that it is the down fall of the American education system. I know that gay people aren't out "converting" young kids. All the things that some of the blowhards are purporting that gay people do is just a bunch of lies--because they are scared of things they don't know.
Christians aren't starting a lot of the mess in the world, people in general are, regardless of belief. What's the line from that old Boy George/Culture Club song...War is stupid and people are stupid. Little did he know how prophetic that would be some 20 years later. So don't go around judging all Christians, especially some of us who are "evangelicals", because we're not all as pig-headed and closed minded as the leftists would have everyone think we are.