The May government was trying to keep the UK in the EU and had she not been ousted, I'm sure she would have pushed for as many referendums as it took to change the vote back. It was Boris that said he would deliver what the people voted for and that is why he got an outright majority despite all the crap thrown at him and backstabbing that went on to try and bring him down.

People in the UK (the majority) want their country back and are prepared for all the short-term hardships that that will bring. If that meant doing a deal with the devil ie. labour voters voting conservative (which would be something like black people voting for the ku kux klan in comparison) then they were prepared to risk a few years more of their rule to get the long term result of leaving the EU and standing on their own again.

Most people don't know that the UK twice voted not to join the common market (the original European vote) because they knew it would not be just a common market, which most people were not opposed to, but would become the bureaucratic and undemocratic monster that it is today. They were right and that's why they want out.