Stop using someone else's services for your expression. Just imagine you are in Walmart or a Target or your local grocery store. You don't have a right to be there or to engage in any speech or really anything else if the manager wants you removed from private property. If you want to nationalize Twitter and Facebook be my guest but until then the owners of said private property can continue to kick people off of it. I still have yet to see one case where a person's right to free speech were somehow infringed upon.