[id]

>Being against Gay Marriage rights is a political opinion, just like being FOR Gay Marriage rights.

There is a difference. If you are for gay marriage, you support gays having the same rights as everyone else. If you are against it, you want them to have less rights, just because they are gay, even though it doesn't affect your own rights in any way.

Now, it's still a political opinion, but it's reasonable for other people to not like it. Being in favor of segregation is also a political opinion but would provoke similar backlash.