Scientist, after decades of study, concludes: We don't have free will

What is "free will"?

It's impossible to 100% predict human behavior due to quantum randomness. And people often think things and make decisions which are seemingly random.

On the other hand, people also often follow patterns, most human behavior is predictable. And "free will" is often used in the context of morality or willpower; but almost (if not) everyone will become a bad person, or mentally break and give up, in a certain situation or upbringing.

Assuming it were true that we do not have free will, what implications might this have in a society? Courts, laws, ethics, etiquette, etc...

The bifurcation of response to this is telling.

Nobody has free will therefore:

-We have an obligation to be kind.

-Kindness doesn't 'work' at scale.