Up to now the people have been very pro- the ruling elite - go look at how they vote

Not on Europe.

Thwey voted for Brexit because the ruling elite persuaded them

The ruling elite, barring a few renegades, tried very hard to persuade them to vote Remain.

BWM,
We have always had parliamentary sovereignty,

No. Most of our laws were made in Brussels.
Our Parliamentarians never rocked the boat by challenging anything.