I think its more accurate to exclude Scotland and NI which makes those figures worse, but yes. That is a landslide and guaranteed Bojo basically unlimited power under the British system. And people voted 2:1 to keep this system back in 2011
They only got offered one other option though. Because the research suggested a true PR option would win, so they didn't offer it, then they could claim they'd tried and the people had rejected it.
Same trick used in the Scottish and Brexit referendums. Worked out for them with the first two, blew up in their faces on the third go.
People voted no because the same people who ran the Brexit campaign told them not to, with the backing of all the newspapers.
That would have been harder if they'd given a better option, so they didn't.
People should have voted yes, it was the smart best thing to do, but they didn't. Some of them are just idiots, but most were just bamboozled into thinking they would get more money for the NHS by people who hate the NHS.
https://en.wikipedia.org/wiki/2011_United_Kingdom_Alternativ...
This is the problem the UK has: we choose to fail and then complain we're failing.