Other kids suffering because of 1

On a family vacation as a single mom with 3 kids ages (10, 7, 4), 7 yr old starts to act up when he didn’t get what he wanted and ends in rule of 3 (loss of privileges). Also hard to make him work or give chores during this vacation where daily activities are planned. Do I stop everything to address this child? Go home? I feel bad for the other kids who have to pay and suffer for what their sibling is doing. Should everyone else have to suffer because of this? What is the best way this can be addressed?