Trump's primary role is to accelerate. His mere presence is to inspire derangement and delusion. The Left NEEDS a figurehead like Trump so they can justify their excesses as a response to him simply existing. He knows it, too. It's an elaborate performance by both sides except the masses are under the impression it's real. Any genuine positive political achievements of Trump's are memory-holed at worst; down-played and ignored at best. That's also intentional because it's another indication to the puppet masters of what stage of pliability the masses have arrived at. If people are willing to sabotage anything good that comes from a political figure (such as Trump) because the media has convinced them he's a bad man, again, this indicates that people are actively willing to deny the reality before their eyes. This is Trump's role and impact on the Left. His existence as it pertains to the Right is another kettle of fish.