Not the other commenter BUT, It took the right wing 7 decades to drag the country as far right as they have. We're here now and I suspect the left won't be able to drag it back in any less honestly.

The other commenter already answered your question. There needs to be a generational shift in the party. The way that happens is by running strong, local candidates that can take control of the conversation and push their ideas, that's how you win in a democracy. The other option is to coup.

Look at what the right has done over decades, they've seized control of local and state legislatures across the country. They ran candidates in places that were easy to win and in seats nobody wanted. There are conspiracy theorists on school boards deciding what can be taught, it's wild.

My plan is simple and I repeat it as often as I can, especially to trans and BIPOC friends. Voting is the absolute minimum you can do to participate. Network with like-minded people around you. The police will not protect our communities. Get a gun or two (a long one and a short one) and learn how to use them. Learn some basic first aid, you just need to be able to stabilize someone.