Can't blame them for the 2008 financial crisis, or even for Covid, though... and don't worry, the opposition is not better, judging by their plans (or lack thereof...). They'll most likely be in government by the end of this year, though. Fun times ahead.
Edit: The bulk of the 2008 crisis was handled by the previous, Labour government and the conservatives inherited the debts to deal with. I'm not saying that handling of Covid was good, but looking at other countries it was certainly in the average (and the UK government decisively intervened to secure a domestic vaccine).
The thing is that they've been in government for very long so have run out of talents and are obviously being blamed for everything. Many young people have never known anything else so of course they are the bad guys (on top of young people being on average more to the left). This is an eternal cycle and the same will eventually happen to the next Labour majority.
Now, that's the issue Labour have: They have it easy at the moment, it's all the Tories' fault, the Tories are incompetent, etc. Fine, but at some point they will need an actual plan if only because, again, they'll most likely be in charge within months.
Even Brexit is not exclusively the Conservatives' "fault": The Labour party and electorate were also highly divided on the issue and it was the Labour government of the time that decided against all restrictions to East European immigration in 2004. And I remember how popular they were when they obediently followed the US in Iraq...
Labour even had a good shot as being elected earlier but made themselves unelectable by going far left, and they are still grappling with that.