Republicans want to deregulate ISPs but regulate .com because the most influential .com companies lean left. It's as simple as that. They were happy getting rid of the "fairness doctrine" for broadcast TV but want it back for .com platforms.
Trump is just the most ugly manifestation of this attack on non-right wing media and platforms: he threatened to veto an unrelated military spending bill unless Congress repealed Section 230 in hopes of heaping a DMCA-like level of liability onto Twitter et al. The actual result would be the neutering of the Internet for everyone: no comment sections if discussion was not the major feature, heavy moderation of anything that might offend anyone.
Trump is just the most ugly manifestation of this attack on non-right wing media and platforms: he threatened to veto an unrelated military spending bill unless Congress repealed Section 230 in hopes of heaping a DMCA-like level of liability onto Twitter et al. The actual result would be the neutering of the Internet for everyone: no comment sections if discussion was not the major feature, heavy moderation of anything that might offend anyone.