Why are you opposed to equal rights for gay Americans?
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Because there's no more of a special class above scrutiny called "gay Americans" anymore than there is a special class for another behavior called, for instance, "heroin addict Americans". Both involve addictive behaviors. Behaviors aren't a class of people.
Remember the false premise I've been talking about for years now? You cannot make "doing" a protected class unless that doing is religion. Even then there are limits because a Muslim cannot "do" the act of killing their daughters, even while under the umbrella of Islam.
If you set a precedent that people can get together and do minority behaviors the majority objects to and call those doings "a protected thing" (above the law), then the 14th Amendment demands that ANY group of doings that the majority objects to can also get special protections (be above the law). This is why "LGBT rights" is an unworkable precedent.