You seem to have completely misunderstood me. I'm talking about situations where a poor or middle class person is being sued by a rich person or large company.

You seem to have completely misunderstood me. I'm talking about situations where a poor or middle class person is being sued by a rich person or large company. How does a class action cover that? And ambulance chasers sue big companies on behalf of poor people, not defend poor people from lawsuits. Both of your examples are the opposite of what I'm talking about.