And then get mauled by four others in the flock from behind.
Smart men blow their heads off from afar.
Paralyzing palm with it's ridiculously long stun makes this less of an issue.
A correctly built unarmed build would be able to take on multiple DCs.
It's not as easy as standing a mile away and plucking away at them, but with planning, a few chems ( Rad Child for hardcoe mode ) and a good build you could do it.
Being Unarmed or Melee takes fore planning, scouting...not just running in guns blazing.
I haven't cleared the quarry out yet on my Unarmed build yet but the other DCs I've encountered so far have been manageable.