In the case of Trump, Twitter was actively interfering with one of the main channels being used by a Republican president, up to and including banning him while claiming "I will not be going to the inauguration" is an incitement of violence.
That isn't an acceptable situation for a wing of politics. The right will need friendly, or at least neutral, versions of the big social media platforms and they will keep losing elections until they figure that out.
People may or may not agree about the specific case, but looking at the capabilities in a strategic sense and it isn't something that can be glossed over. The outrageous treatment Trump received on social media is a big deal; insofar as the right wing is a political entity it has to respond.