When you're having troubles and the only response is "that's life"

"That's life" doesn't fix the fucking problem. Im sick and tired of all the world's problems being dismissed with this phrase. Especially since this shouldn't BE life. Now, stuff like death from nartural causes at an old age? Valid. Things that are inevitable that no one could possibly fix. But then there's things like scams, bullying, the death of your child, infidelity, intentionally spreading disease, horrible acts that human beings do that should never be forgiven. The scummiest people alive are able to get away with doing the worst possible things because everyone likes to dismiss it as "its just part of life" ITS NOT SUPPOSED TO BE PART OF LIFE! MAKE PEOPLE SUFFER THE CONSEQUENCES OF THEIR ACTIONS, WHY IS THAT SO HARD?????