Not when they collaborate with the government to censor opinions, which has been happening. Furthermore, there have been several court opinions in the past tha

Not when they collaborate with the government to censor opinions, which has been happening. Furthermore, there have been several court opinions in the past that have been sympathetic to the "town square" argument of a platform. Restrictions to the first amendment have traditionally been on the basis of a narrow set of immediate threats. They are not thought crimes.