There should be publicly available data about how expensive class action lawsuits are to the court.

I would personally categorize it as as subsidized not paid for since the lawyers get nothing if they fail which is a meaningful cost.

None of this is to say I support the current system. Class action lawsuits are now designed to get settlements that save the company targeted millions or more compared to the actual damage agreed to.

And giving the lawyers millions when each litigant is lucky to get $20 is not reasonable.