I'll type slowly so maybe you can grasp this.
"Free speech" rights, as you refer to them, are an obligation of the Federal Government, not, repeat, not private enterprise. You have no more standing to invoke your "right" to free speech here than you do from mid-field at the Superbowl or from the meat counter at the local grocery store. Sure, you can try, but only if the proprietors wish to permit it. On the other hand, they are well within their rights to throw you out by your ear.