However, more and more social media companies are working as direct representatives of government, whether it be local, Federal, or foreign.
State and local agencies in CA have gotten social media companies to censor content that they didn't like. The Biden Administration complains that their definition of disinformation needs to be removed and blocked.
If social media is willingly conspiring with the government, and in effect becoming an agent of said government, the 1A should fully apply to them as well.