Netero wouldn't, at least. Politicians probably would, but I see Hunters differently. For one, they even had to pay Killua's granddad out here, as if 'saving the world' wasn't enough..

And it wouldn't work either. The king damaged himself voluntarily, but pressuring him into it? I see too much pride for that to happen.

The whole point was that they had no qualms about killing the king because they thought he was some monster, but even though they're still proceeding with a fight the two aren't entirely sure they should be fighting the being who is capable of love.