You mean the Brexit sunny uplands. The Tory party - the Prime Minister in fact -campaigned for Remain, you may have forgotten. And actually, it's going a lot better than I expected it to. I thought it was going to be an unmitigated disaster and it has been far from that. I never in a million years expected us to get a tariff free trade deal. I campaigned for Remain, we lost, I got over it.
As to your point about the financial crisis back in 2010, no, it was not the same. The Tories didn't gain power and start saying oh my God it's so much worse than we thought. They said they would make spending cuts to begin to reduce the defiit, and they said this BEFORE the election, not afterwards. By contrast, Labour said nothing about increase to IHT or to pension-related taxes. They said repeatedly they would not increase taxes on working people. I cannot for one moment imagine that was anythig other than a bare-faced lie.