People with pre-existing medical conditions (what the f is pre-existing?? It exists, or it doesn’t. It never pre-existed) are MORE susceptible to typhus and other diseases the illegals bring.
Pre-existing means the condition existed before the insurance policy was issued.
That is the entire idea about insurance. A person pays into the insurance fund when they are healthy so that they are covered when they get sick or have an accident.
You do not need insurance if you can sign up for it after you get hurt or get sick.
When you can do that, you only need pay premiums after you get hurt, then stop paying premiums as soon as you are cured.
All insurance companies go broke shortly after that, because there would not be any need for insurance.