Tank entitlement vs group entitlement

[Sylve]

Or ask the rando if the rando refuses you initiate a vote to remove the player if it passes you get a replacement if it fails you either make the choice to deal with it or leave.

or

Accept that a DF run will very likely not be a speedrun the moment you add a random to your party.

You could try simply accepting that not every party will be a perfect speed run.
You waste more time booting the 'offending' player and getting a replacement than it would have taken to simply deal with it and clear the dungeon with the party you have.