You’re right. Basically Democratic voters are asking for someone in the party to take one for the team in ousting Jeffries, itself an uphill battle but also even if they are successful, stymies their chance of advancing to the Senate or Presidential cabinet, or even some House positions for several years. And if they fail, they risk internal consequences of being labelled an outsider or splinter-party rebel. Not an easy thing for any of them to simply stick up their hand and volunteer for.