"Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof; or abridging the freedom of speech, or of the press; or the right of the people peaceably to assemble, and to petition the Government for a redress of grievances."
Don't see where Trump said you can't be a muslim anymore. And I don't see how this applies to people that are not Americans. So, yeah, try again.
Do you think that President Trump could bar everyone but Christians from entering America? Do you think that would be considered an establishment of religion? Remember, the establishment clause prohibits the US government from treating any one religion preferentially over any other.
So yeah, seems like a pretty huge violation to me. It's just bizarre bigotry based on panic and irrational fear. I expect this sort of thing out of children, not adults. It's like the stupidity with Ebola where everyone wanted to shut the borders to West Africa. Have people forgotten how dumb that was already?