Other younger politicians may end up offering those same things, which would be great. But with Sanders, voters burned by past broken promises have probably guessed by now he’s constitutionally incapable of deviating from his platform. I don’t even think Sanders would know how to betray his own ideas for political gain.
About that: He was roundly mocked in 2016 for describing his campaign as a revolution, but as the policy discussions at the Gathering showed, his platform is actually revolutionary, in a specific way.