There is fundamental confusion on the source of our right to free speech. The right to free speech codified in the 1st Amendment is not a grant of the right of free speech; it is a prohibition against government interfering with an inherent right of Americans:
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.
We really don’t consider our rights open to discussion. We don’t consider anybody’s rights open to discussion—not even when they’re exercising some rights to call for limiting others.