The barrier here isn't really the need for a law degree. Prosecuting these kinds of cases against deep-pocketed defendants like Google doesn't only take expertise in the law, but the resources to review millions of pages of Google emails to establish how the system works and what Google's intentions were, as well as experts to opine on technical aspects as well as calculation of damages. There is no practical way for individuals without significant resources to prove up this sort of case on their own.

The realistic alternative is having government agencies prosecute these sorts of cases. It's a very good alternative, and is used in most other countries. It's an odd confluence of factors that results in private class action litigation being more popular in the U.S. (From the left, trial lawyers are major supporters of Democrats. From the right, Republicans would rather have these class actions than new government agencies.)