The Bill of Rights doesn’t allow anyone to do anything (least of all me and other non-Americans), it prohibits the government from doing some things.
If you’d like me to list what it prohibits the government from doing, I’d be glad to:
- making a law respecting an establishment of religion, or prohibiting the free exercise thereof;
- making a law abridging the freedom of speech, or of the press;
- making a law abridging the right of the people peaceably to assemble, and to petition the Government for a redress of grievances
If you’d like to know how that applies to any particular set of problematic facts, you’d have to take it up with lawyers and courts. But the idea that part of the analysis would be whether the possibly-protected thing was illegal is just straight up wrong. You can check, again, with literally any lawyer on that. The very idea that legislation could overrule the constitution is nonsensical.