No illegals are on Medicare or Social Security or SS Disability.
Illegals get Medicaid and Supplemental Security Income (SSI).
Medicaid and SSI are funded by tax dollars, not by Social Security or Medicare premiums.
Medicaid is wonderful - it pays 100% for almost every serious medical issue.
SSI is $943 cash per month, according to Bing - for disabled persons or for age 65+.
Illegals are not eligible for SSI. One must be a US citizen or permanent resident who has lived in the US since 1996.
But, there are many anchor babies who receive SSI, and their illegal parents cash the checks.