My parents have had complete TDS for years now. Literally, if POTUS came out in favor of breathing they would frantically call me to stop breathing.
Yesterday, I was able to convince my father that Trump has done at least 2 good things. He agreed that his hardline approach to China over human rights violations and the massive crackdown on human trafficking (things he hadnt heard about from lamestream media) were good. I took him from drumph is Hitler reborn to Trump has done some good as POTUS.
I count this as a major victory pedes! We can break though TDS with honest polite conversations.
The goal with any TDS sufferer is not to convince them that Trump is the good guy. It's to get them to realize that Trump is not the caricature they have been presented with, and that they aren't being usefully informed by their current set of news sources. Resentment over being deceived, and curiosity, takes care of the rest.