Most of these politicians are complete idiots. They are so eager to figure out how to offer money and benefits to people for votes, that they don't ever even take time to think about the feasibility of it.
Furthermore, the medicare for all plan represents a DOUBLE of taxes paid by working and middle class people (11% absolute increase, which will approximately double the taxes they pay):
https://www.atr.org/list-tax-hikes-sanders-medicare-all-plan
There is no way to pay for all this stuff.
One of the more important topics, which the video touched on, but didn't dig into, is 2 parent households. African Americans have the highest rate of poverty of any racial group. Do you know what it is in 2 parent households? 5%. And thats the highest of any racial group. Have a 2 parent household and be an African American, and you have nearly a 20 to 1 odds of not being in poverty.
Working on programs that help spread that message and ensure equal opportunity of education would have a much higher impact on the income and wealth gap then writing someone 1/4th of a check because they are 1/4th African American.