Class actions are broken and rarely actually directly benefit the consumers. At best you can say it is a large club that can be wielded on behalf of consumers to force large corporations to behave responsibly. At worst it's a total racket where attorneys can get very very rich by "representing" consumers and shaking down large corporations, which will eventually end up being paid for by the consumers who were meant to be protected in the first place.
I think the USA needs stronger regulators who can actually enforce the laws using fines and lawsuits rather than the legal system which does not work.