They sound more like terrorists than union members.
Check it out:
The union in question is United Steel Workers 8751 and the leaders in question are local president Steven Kirschbaum, and his second-in-command, vice president Steven Gillis.
The local and its leaders have been in an ugly contract dispute with their employer Veolia, which runs the school buses for the city of Boston. Veolia also runs bus lines in Israel and has been the target of anti-Israel BDS activists.
In an effort to gain support for their fight with Veolia , the leaders of USW 8751 have taken their dispute too far, past the bounds of decency.