Some people allegedly are "horrified" at Donald Trump's intent to ban Muslims from entering the US. You can read about it here:
The US has NEVER lived up to the letter or the spirit of the First Amendment.
Should you need an example of what I mean, just consider Native Americans, who have been continually persecuted and/or murdered for having a different religion and way of life than the European invaders who stole this continent from them.
Dear Mr. and Mrs. America - If you want to be horrified, be horrified at the things you tolerate and/or cause each and every day of your lives.