Some would say they rioted in the ballot box, via the Brexit referendum.

While a lot of people lost money during the banking crisis a lot of people were unaffected. The current inflation crisis means the bottom quartile will probably start to go hungry and be unable to afford to heat their homes. It's not like those people were saving 20-30% of their income 2 years ago and they're now spending 20% of their income on heating and their groceries got 20% more expensive and fuel (for driving) increased by 50-100%.

True but that was “just” a bad recession, but we never actually recovered from it. Now we are the brink of global war, reeling from Covid supply chain issues, and stagflation all on top of a world economy that has been propped up by central banks for the past decade while simultaneously exploding the money supply and essentially making internet rates zero.

This is the world on modern monetary theory. Not even once.

Most UK cities had big occupy protests, we had one in my city in the UK for quite a while.

They collectively did far less to the financial industry than some people on the internet buying Gamestop.