I think a general strike would be effective, but dangerous when people are kept so close to poverty.
Remember the pandemic, we "all" stopped going into work? Except the grocery store workers, and the food processor workers, and those that distribute the food, and water treatment plant staff, and the power plant, and hospital staff, and taxis, and drug store workers, and so on and on. Do those people stop working? How many people can't obtain the things they need beyond their next paycheck? What if in addition, the store shelves are empty?
I agree, it's the most feasible way to fight back, so don't get me wrong. But just like union dues and preparation enable a local strike, accounting for food, water, amenities...a general strike would need to do that or else we would be fighting a war of attrition not just against billionaires with multi-year bunkers but also against ourselves.
Don't forget to bathe in raw sewage.