There's too many lawyers, it wouldn't be a problem if law school was cheaper but the fact that so many of them have big student loan debts means they have to find reasons to sue people in order to pay of those bills.
This is a huge loophole in the law and the justice system. Apparently there is some set of laws such that if written the right way, they can be completely and blatantly unconstitutional yet still remain in effect. This is effectively a backdoor around the constitution, and the question right now is: which laws will SCOTUS refuse to stay? And how much damage can we do in the interim period when the law has been challenged but neither overturned nor stayed? How much can we get away with?
https://www.dir.ca.gov/Private-Attorneys-General-Act/Private...
The reason why SCOTUS is humoring Texas is because actually stopping their legal shenaniganery requires legislating a whole new tort reform regime from the bench. 'Cause that's the only thing that would really work to stop Texas: ending or severely curtailing "private AG"[2] causes of action in the law. But that also means rolling back a lot of legal liability that corporations otherwise would have for their actions. Balancing this properly would be difficult - it's something that Congress really should be doing, not the Supreme Court... but they never did, so now here we are.
[0] "State actors" means all levels of government plus private corporations acting in the role of a government.
[1] For starters, the 5th Amendment does not apply to civil litigation. If the government wants to throw you in jail for 10 years for making counterfeit Mickey Mouse merch, you are allowed to refuse to testify and the court cannot assume your guilt from a refusal to testify. However, if Disney sued you for $10,000,000 for the same tort, you can be forced to testify against yourself and refusal to do so will result in an "adverse inference" being placed upon you.
[2] Laws which allow private individuals to bring class action lawsuits on behalf of some public interest, in lieu of the US government prosecuting them. See https://en.wikipedia.org/wiki/Private_attorney_general