During the Clinton administration, the one thing that organized labor fought for really hard was the bill to ban the permanent replacement of strikers. The White House sat on their collective hands. The bill failed.
Also during the Clinton administration, the one thing that organized labor fought against really hard was NAFTA. You know what happened there.
The fundamental shift in the Democratic Party since the DLC captured control is hostility to labor in favor of business. We have decades of the Dems selling out labor and getting away with it by being marginally less awful than Republicans. Workers will hear nothing helpful from the Democrats, and even here on CD there are discussants who accept the political equivalent of being the battered spouse.
As someone who marched in Detroit's Labor Day parade in the '80s and who has always been active in my union (please note that, nitwits who might smear me as being on the right), I simply refuse to validate Democrats whose view of labor is to the right of Nixon's.