construed as working for and collaborating with the communist state.
Indeed. Without the passive collaboration of many many people, the regime could never have worked. We all saw how Poland fell to pieces in 1981 when Solidarity really started putting on the pressure - it was the threat of a return to Stalinist methods that finally got people back and working in late December.
But to look at your proposal - what about the sons and daughters of such people? Should they be punished too, particularly as they might have benefited from family connections?