I respectfully disagree with your assessment
I agree that's the proper definition of liberal.
But aren't Sanders and Cortez deeply illiberal in that sense? They seem to oppose private property and equality before the law.
Cortez campaigns on a number of handouts
https://www.ocasiocortez.com/issues
Medicare for all, housing for all, education for all, benefits for criminals, benefits for foreigners, benefits for Puerto Rico.
How are these benefits to be provided except by taking private property? And of course to give only to specific groups you must take from some other specific groups, so there is no equality before the law.
Sanders also has a laundry list of handouts
https://berniesanders.com/issues/
He wants to legalize pot, which is liberal. But he wants to restrict gun ownership and sales, control various prices (especially in financial services), dictate choice of energy source, "give workers an ownership stake in the companies they work for" and so on.
It seems to me this is also illiberal.
I think historically progressivism has been a code word for communism (perhaps Fabian communism) and has been consistently opposed to individual liberty (especially in the economic realm), private property, and equality before the law.
Discussion
What element of my assessment do you disagree with?
Do you think Sanders and Cortez can fund these programs without expropriation? Do you think individual rights do not apply in the economic sphere? Do you think exporioriation is consistent with private property and individual rights?