And here's a postscript: If you think that the programs being advocated by Sanders or Elizabeth Warren are the kind of programs we need, then vote for the candidate whom you think will best advocate for the policies and programs you want. That is how democracy is supposed to work! People with the opposite view will get their say, too. You don't have to worry about that. Nothing "reckless" will be done - unless we reelect Donlad Trump, who will continue to advance the idea that he, as the president, is the only one who gets to decide what happens.
(2) - https://thebluedeal.com/products/anyone-but-trump-2020-bumper-sticker