Like Jimmy Dore likes to say, Democrats would rather lose to a Republican than win with a Progressive.
If Harris wins the nomination (and she’s already been chosen), we will get 4 more years of Trump. The only other chance would be a third party candidate finally upsetting the race. Which the media will fight tooth and nail to prevent.
You need to look again. Obama was and is a corporatist. Now making $800,000 a pop for speeches to WAR Street. Expanded wars, bailed out WAR Street, ignored Main Street, surrendered the public option voluntarily while making insurance corporate profits mandatory. Plus allowed QE to continue his entire time in office, allowing big banks to get bigger for the sake of the stock market. Never touched wages. Never touched election fraud. Endorsed Russiagate and still does.