Disagreement I can countenance even argument. But why the sabotage?
If one disagrees, they’re gonna be working the other way ... it goes with disagreement.
It sounds like you’re saying something like this (i.e., in a similar vein) ... “You may disagree with my candidate in this election but why are you trying to get that other candidate elected? You’re sabotaging my candidate by doing so!” ... :-) ...