> The limit per month for making money, like getting a side job to try to get back to work, is $20, which has not changed since medicaid was started in 1969.

No, it's not; income limits are set by states, vary by population, and for populations that are covered at all tend to be much greater than $20/mo. The Medicaid expansion as part of the ACA also resultted in substantial changes in many states.

[0] state limits, as a percent of the Federal Poverty Level, are available here: https://www.medicaid.gov/medicaid/program-information/medica...