Absolutely. The US is in dire need of drastic reform, the Covid-19 crisis shows how terrible your healthcare system is if nothing else. However, as I said earlier in this thread, things need to be done gradual in the USA. Bernie's policies are probably the best for the USA long term, but the US populace or political system isn't in a place where they are ready to accept those policies yet. Biden is unlikely to lay any groundwork for a left turn in the democrats, but he's probably the best candidate to hoover up centrist voters in an election against Trump. And right now, the more important part is making sure Trump doesn't get four more years of making the USA look like a farce.
That argument won't hold water in four years, when Trump is gone one way or the other, but for now you probably need to plug that gaping hole in the roof instead of starting to tear down inner walls to totally renovate the interior of your house.