Tell me how much did you pay towards your health insurance.
A company can change benefits whenever it wants for whatever reason and if you were actually fired because you were sick you might have cause to sue but you said yourself that you settled so you accepted compensation for your termination.
Case closed but now you want to whine about it and call every business owner an asshole because you settled for a payout that you're not happy with.
No matter how you slice it you are not free from culpability here.
I made the best of a bad situation. Doesn't mean the assholes who did it weren't completely fucking evil in any moral universe.
Just because I didn't go through the painful route of suing doesn't mean that what they did was okay, or that I really should keep supporting the enemy.
You have met the enemy and he is you.