The game really needs a way for the group to boot the leader out. It doesn't make sense that only the leader can boot others. More than once I've been in a group where the leader kept asking others for crowns or energy. That in itself isn't a big deal. But when they refuse to get on the group button or the lift until someone gives them crowns or energy, it's really unfair. I had to leave a group today because the leader was demanding energy. I refuse to give in to beggars. and I especially dislike being held hostage at a lift until I pay a toll.
There should be an option for any group member to start a vote on whether to boot the leader. If 2 out of 3 (group leader would not be able to vote) say yes, the group leader is booted.
Who would be the group leader afterwards? What about in groups of 3? While I agree it sucks that leaders can do that, your suggestion is open to just as much abuse, and if a group leader thinks hes going to be kicked, he can always just kick you first.