The people who run Full30 already did.Bull.
YouTube only exists because of enormous investments in technology and infrastructure that came out of taxpayer dollars..
YouTube exists because three regular guys created it. Google only bought it after it became popular. What is this enormous investment that came from taxpayer dollars you refer to? The internet itself? By that logic all internet speech is subject to government intrusion since the government invested in the backbone that carries it. Your argument about a functional monopoly doesn't hold water because there's no artificial force driving traffic to YouTube. YT became popular through natural competition, not artificial market manipulation. People were always free to visit whatever video sharing site they wanted and YT won that competition before Google ever started driving traffic to them.
Would you feel the same if the situation were reversed? What if the AG of some state was attempting to force them to air content you despise? Would you argue they have a duty to roll over and comply?