that he doesn't understand democracy. Not one MP in this country was elected on the understanding that they would cowtow to the whims of their constituents.
No, but both major parties had manifestos which would be MPs needed to agree to.
The Labour manifesto said: Labour accepts the referendum result and a Labour government will put the national interest first.
The Conservative manifesto said: “We will get on with the job and take Britain out of the European Union.”

So MPs of both major parties have committed to going ahead with Brexit.