Earlier quoted context omitted.
People didn't flip to red so much as blue voters in swing states sitting on their hands and abstaining from voting. Now they're looking down the barrel of authoritarianism and they're still unwilling to vote unless Gaza is a fully solved problem. The cruel irony is that this behavior is worsening the situation in Gaza.
Couldn't the Democrats change their positions so that they align with and accommodate popular positions and win elections. I don't think most of the (rather large block) of folks I know who abstained wanted a fully solved problem, they wanted the US to stop funding Israel and that is a position that the Democratic party could have taken if they had chosen to do so.
Sitting out of the process does absolutely nothing, whether its a protest vote, pretending that politics don't affect you, or just giving up completely. The people who get elected in those situations always 100% ignore you.
When people are in office that are at least willing to listen, you then make a lot of noise and put on pressure. You might get ignored mostly, since you are a minority voting block, but you can make incremental gains and even sometimes big wins.