If the third party is actually able to represent the people better than one of the current two why can’t it be switched to it? It could start with local elections to then state level candidates, it wouldn’t be a switch out of the blue, most people wouldn’t even know it exists the first few elections (hell, just the amount of people googling if Biden had dropped out of the race on the day of elections shows how uninformed people can be) but the current state of the democratic party can’t stay, it either gets kicked out or it adapts because of competition
Keep your brain worms to yourself, thank you very much