Still unclear what your point was. There was nothing politically unifying about Brexit. Individual politicians weren’t even consistent in their support or opposition to it. The closest we have to a unifier now is centrist and Left politicians degrading themselves in ever more desperate attempts to vilify immigrants and trans people in an attempt to placate the Right (which as yet hasn’t unified anybody, to everyone’s surprise).

But... it didn't. It essentially destroyed the Tories, and did Labour no favours either. That's why there were all those PMs.