Those sort of views are very prevalent throughout society - not only in the UK, but pretty universally throughout the Western world. Its the main reason why Brexit happened, Trump got elected, the current Italian and Hungarian governments were elected, Austria has the right wing Freedom Party in its governing coalition, Marine Le Pen was in the last round of the French Presidential election and why Gert Wilders is the head of the second largest party in Holland.
Currently there is a fundamental divergence of the opinion in Europe between the ruling classes and the ruled. And when the ruled manage to overrule the ruling classes via the ballot box they see the sort of antidemocratic behaviour that Brexit has produced, which will only exacerbate the problem. If the masses discover that voting for change is ignored or stymied by those doing the ruling, then they may forget about voting, and take more direct measures to ensure their wishes are fulfilled.
the peasants are revolting