I remain flabbergasted that Brexit happened but wasn't the overwhelming victory of Boris Johnson & the conservative party at the end of 2019 basically a re-statement by the population that they wanted it?
IIRC that was basically a single issue election after which Brexit was more or less fast-tracked without continued internal opposition.
Up until that point there had been a series of delays and rejections of Brexit plans in parliament and it looked like it might not happen.
(I'm not British and have only watched this from afar so I'm actually curious about if this read is accurate.)