I am pretty sure that a general strike could not have been initiated in Poland without the support of traitors from inside the top layers of the communist party and of the security forces.

In any of the communist countries of Eastern Europe everybody hated the government and they wanted to start a general strike. However, immediately after somebody would say this in loud voice, they would disappear. There have been a few cases when strikes have succeeded to start in a place, but then the government succeeded to prevent everybody else to know anything about this for many years, usually until the fall of the communist governments around 1989, and the strikers would disappear in such cases.

The weakness of the communist governments around 1989, after decades of easily suppressing any similar opposition, can be explained only by an internal fight within the communist leadership.