Organize a general strike. It doesn’t even necessarily need to be a large scale workers strike, a consumer strike would do it.

Not that a workers strike wouldn’t be good too, but I know a lot of working class people are reluctant to strike because they can’t afford to lose any pay (that being said, a consumer strike that went on long enough would likely cause layoffs so some people would lose their jobs regardless, but unfortunately that’s just unavoidable if you want to cause the kind of economic pain necessary to send an effective enough message).

And a consumer strike wouldn’t even need to be that widespread. Just get enough people to reduce their discretionary spending enough to cause overall consumer spending to decline even just a few percent and panic would set in. The stock market would plummet. Billions in net worth would be lost.