Easy answer: 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.
Case closed, right? But do you expect a group of people who are so immature, childish, and infantile that they can't even bring themselves to utter the "dirty word" in question to actually be grown-up enough to realize this?
"Why do you think the F-word has shocking value or emphasis or force?" Roberts asked. "Because it is associated with sexual or excretory activity."
The "Roberts" mentioned in the quote above is the "Chief Justice" of the "Supreme Court". Seriously, these people should not be in a position to decide anything important, if their "chief" can talk like that. And be taken seriously, no less.
(Aside: Chief Justice Roberts believes that "the F-word" is associated with "excretory activity." From this we can safely deduce that Chief Justice Roberts must be into scat sex.)