Democratic politics is always conducted independently of the wishes of the electorate- as I said, that is pretty much the purpose of a political party. Elections are fought between two different versions of the same view and all views that sit outside of that are ignored.
Which is why it is quite amusing to see someone like you get so high and mighty about it the minute it happens to exclude you.
Look at you and Sir C ****ting your pants about Corbyn. The sheer terror that seizes you the minute the prospect of a genuine left wing government becomes even remotely realistic is tremendous fun.
Whichever way you cut it, Brexit happened by accident. Cameron's gamble only happened because of a delicate electoral balance which was NOT just about UKIP. Not even mainly about it. It is a strange argument to suggest that an accident after a 40 year wait is democracy in action.
Once this is done and dusted the political class will be back in total control and wil be ignoring all of us for decades to come. And you won't complain about it.