You can still spread while vaccinated and while it may still lower the chance, it means it would be nearly impossible to prove who you were infected by. Additionally, where is the recourse for those who suffer from the adverse effects? Why are the pharma companies protected from lawsuits when they have so much profit from this? Maybe they should set the precedent here, and then we could hold those who don't take it accountable as well.

When I've been sick in the past I've often thought that it would be nice to have recourse against the people who infected me.

This is life though. It's not practical, moral, or enforceable.

The best thing one can do is put effort into the factors they can control—diet, exercise, avoiding unnecessary conflict to keep stress low, etc.

They get to sacrifice a scapegoat to appease the gods which will make them feel better at living in a chaotic world.

It’s their personal responsibility to get vaccinated if they want to avoid that outcome