Law can send them away, Hancock can turn them to stone, bartoncan stop them from being useful with his barriers, Law can attack them from the inside bypassing their durability. Zoro can tell everyone their weakness.
How can Law do such a thing with Kizaru on his ass? He’ll be the one sent away in that case.
And sent to where anyway? The bigger the room the more energy he expends…and he’d have to send them off an entire island. S-Bear can come right back as well and even do the same for the others.
Hancock would have to try and chase them all down (unless you thought they’d be conveniently lined up in one place) which just leaves her open to attack from Marines like the Admirals.
Bart’s barriers only cover finite areas except around himself, and S-Shark can get him from underneath too. Same for S-Bear who can teleport behind him. When he uses the barrier to cover others, he leaves himself exposed as well, like when he created stairs for Robin.
We don’t know if Law’s attacks would work with their flames on btw. Lunarian invulnerability does not seem to be skin deep like Kaido’s, otherwise Lucci’s Rokuougan should have worked on them.