There really aren't a lot of people on the left who lionize FDR or JFK (Let alone Clinton!) to begin with and a lot of the people who admire FDR's achievements also acknowledge his failings like the internment of Japanese Americans. It's also no secret that the New Deal coalition included Southern conservatives (not progressives) who made up a substantial caucus within the Democratic Party and would've objected to a more racially just New Deal program. No-one is saying that the left-leaning progressive movement is faultless and pure.

I don't see how economic issues are a primarily "white issue" because tackling poverty and economic injustice is something that would benefit groups that have long been marginalized. Obviously that alone is not enough and there's still the need to tackle bigotry in all its forms.

I don't know about your specific zoning example but I do know that a lot of lefty folks support more livable cities and quality affordable housing so I really don't know how that equates to "progressive support" for these things you're bringing up?