Let's be clear that there is, for individuals. For firms maybe not, but they could also rely on just never going to court - because it costs too much for who would take them to court.
The costs are the same for companies. Large companies like rich individuals do OK, small companies and poor people go under. It's pay to win.
In Britain there’s the concept of a ‘vexatious litigant’ a person or other entity who makes frivolous legal actions for purposes other than seeking redress for a wrong that has been done to them. You can be put on a register which makes it much harder to bring legal actions in future. There is a broad civil law legal principle that damages paid to you should put you back to where you started before the bad thing happened. So you can’t take out a legal action to get revenge on someone or to frighten them. This is also why we don’t have punitive damages here.
In sensible places, they'd at least be on the hook for both sides' legal fees.
They are in the US. Not that you need a lawyer to file a counter claim.