UpWindSlicer: We are getting hit the Turf Wars at least twice a week and players are getting burned out.
Felix is right, do not have to click to activate.
I am in a club, I dare say it is dead, although ownerless for more than a year, members are still here. There are not a lot but, for some reason, they play turf wars. We actually win some on occasion. Most of the time, it is just a waste of a pass. Point being, despite what I think, that it is a waste of time, given our situation, members seem to enjoy it.
My suggestion is to post in your club forum that turf wars are either optional or suggest that you only activate them once every week or two.
In any case, you cannot stop a member from hitting the activation button and you cannot, and should not, ask them to stop, if they find enjoyment in it. IMHO.