Like I said, I'm not trying to escalate this into a debate on gay marriage, so I'm going to ignore that you hand-waved away the whole point with an answer equivalent to "nuh uh". Wholesale refusal to discuss internally rational lines of thought is the result of dogma, not rationality, which would calmly approach and deconstruct the topic. Unlike many others, whether I ultimately agree or not, I'm not willing to discard a point of view just because an activist attempts to proclaim it thoughtcrime by slapping a label on the speaker like "bigot". What are you afraid to address? As PG's essay says, if the thought is actually outlandish, no one really cares -- hostility like this only emerges if there is concern that the line of thought will become widespread, which is only a concern when the line of thought is internally rational.
I guess your argument is "the APA says they're wrong", and that therefore, they should not be tolerated? No one could ever rationally doubt the APA? I don't know if you're familiar with the history on it, but the removal of homosexuality as a disorder from the DSM was based purely on politics; there was no paper that triggered scientific reconciliation, there was no new data. Since the APA has insisted on calling into question the licensing of persons who may dare to contradict it on this matter, you can't honestly believe that the issue has been thoroughly explored or reviewed, just as we don't believe that the 99.9% election results in favor of third-world despots actually reflect the will of the people. Regardless of your personal feelings, a person can't look at this process, decide they disagree with the APA's conclusion, and continue to have the right to work?
Personally, agreement with all APA policies is not one of the fundamental requirements I look for in my job candidates that have nothing whatsoever to do with the field of psychology, but to each his own, I guess. Remember, you're not just saying these people "are wrong" or "have lost", but that their beliefs are so troublesome that they shouldn't be protected in their freedom to work.
American principles of tolerance and civil discourse are greatly imperiled by the rising prominence of such hostile positions, and democracy itself is threatened by this behavior.
PG stops at murder because it's one of the only moral standards that is practically constant. You stop at "lesser human beings" because it's convenient for the line of propaganda you've swallowed. Should we allow the mentally disabled or decrepit full freedom lest they be considered "lesser human beings"? Should all parents of Downs Syndrome or other profoundly retarded children be deprived of their supervisory and guardianship privileges over adult children lest these be classified "lesser human beings"? Why is it OK for them to be lesser but not others? There are very few answers you can provide here that are consistent with the moral box you've crafted for yourself.
Consider where your assertion that most antebellum Southerners were frankly evil leads. Where did it lead? People in both the North and the South got worked up about this and stirred to believe things like you just claimed about the opposite side. What's the logical result if you honestly believe "a majority" of persons that adhere to an opposing ideology are frankly evil?
Aren't you automatically classifying people as "lesser human beings" by stating that their opinions are not worthy of basic respect, and wouldn't that make you a hypocrite? Should anyone who holds these opinions be executed?
If we acknowledge that almost all significant world religions espouse very different perspectives than you've expressed, would you support doing something about that? Perhaps we should outlaw these religious groups. What should we do with the people who refuse to recant their religious traditions? Should they be incarcerated? Perhaps a labor camp of some type would be useful for this. What do you say? How much value is the work of frankly evil people, like those who express a belief in Abrahamic tradition, anyway? Wouldn't you always be afraid they were going to do some sneaky, evil thing? The uses for this class are rapidly dwindling. What next?
This sort of hate always leads in the same direction. Do not make the mistake of believing that while everyone who has done similar things throughout history was bad, YOUR beliefs are objectively righteous, and that makes it OK for you. It really doesn't matter what the beliefs are or whether they are objectively right or not once they infect someone with the actual hatred you've expressed (not the "hatred" that your camp claims motivates anyone who dissents for any reason), the results are never pretty. I hope you awaken to this before it's too late.