1) The very old with dememtia require nursing home care and this is typically funded by Medicaid. As in 60% of patients. Don’t think your parents will do it because you will care for them? If that’s your attitude, you hate your parents. You are not qualified to provide 24/7 dementia care and if you try you are doing them harm.
No, there is no reply anecdotal reply about your cousin cared for your aunt or your sister cared for your mom. If your sister or cousin are not nurses, they were not qualified to do that.
2) Illegals do indeed get value from Medicaid. On average a few pennies. An insignificant amount. Almost no burden on the system. If they disappear you think that will reduce the Medicaid budget 80%? You have done no numerical research. When every single one disappears, the impact on Medicaid will be nearly nothing. Single white mothers and their kids are the dominant consumers.
Hispanics are counted as “white” in racial statistics, as I recall.