I think the biggest hurdle to something like that is the DNC actively stifling that type of candidate because they are somewhat risk adverse and unwilling to gamble on a volatile character. There is also a clear hierarchy and system where people "should pay their dues" to the party and that type of candidate is likely to be a lone wolf independent type
I was kinda thinking as I was posting that that it’s a bit ironic that the DNC is actually quite rigid and formulaic and yet they are touted as the more open/tolerant party.