That is one way of making them accept it.
If I may go off on a tangent, in the UK it took Tony Blair about ten years from becoming an MP to becoming leader of the Labour party. On the other hand, it took the Liberal Democrats 20 years to become a strong third party, before Nick Clegg fucked it up. It also took the Green Party 20 years to recover from the damage David Icke did to them and get just one MP.
If there is going to be change any time soon in the US, it needs to come from a new generation of Democrats, and they will need pressure on them to not become yet more neo-liberals.