That was a serious question...
I believe that many unions have been taken over by democrat politicians who main goal is the election and re-election of more democrats.
Generally they care very little for the union members themselves. They care mostly for the unions dues that can be generated.
Supporting socialized medicine would mean union expansions into health care...more union nurses, staff...who would pay more unions dues.
Private company unions have been declining.
Therefore the only growth in union membership has been in government unions like the NEA ( government teachers union ) and the county & city government unions.
The union bosses would love to get their hands on some of our health care money.