Their government is captive to the globalists just like Trump is here in the US. In both cases....in both countries the people have voted for one thing but the interests actually in power want something else. I am pretty sure it will take more than a President or Prime minister to get the job done though.
If you want to change the status quo, it helps if you have a coherent plan. None of the Brexiters have a fucking coherent plan, they just want to smash the Jenga pile and can't even agree on how
that should be done. There's a word for that; irresponsible.
In their eyes, why should they need a big complicated plan? England was fine by itself before the so called EU was formed, and not that long ago either. They traded before as a separate country and they surely can manage to do it again. England already has their own pound currency in place. Simply undue all the rest that was done.
Its only a complicated mess because the elites wants it to appear that way! They can surely make it complicated too, since they have their wrench in almost everything that could make it easy.
When Brexit was first voted in favor, I remember reading lot at the time that the elites would never let it see the light of day. And sadly their prediction is proving to be correct. The British have not spoke correctly about Brexit, so the plutocrats would like them to try again and vote the right way this time...
The people mashing down the elite towers and electing the likes of Johnson (and or Trump) does not seem so crazy when freedom from tyranny is at stake.