In the US, there are absolutely no speech boundaries imposed by the government, so the citizenry creates its own limitations, based on the arbitrary values of whichever activist group is most successful at inflicting its worldview upon an economically fragile public sphere. As a consequence, the United States is a safe place for those who want to criticize the government but a dangerous place for those who want to advance unpopular thoughts about any other subject that could be deemed insulting or discomfiting.
