Certainly one can turn on the television coverage of almost any strike and see “scabs” (i.e., people willing to work for the compensation being offered by the affected business) being physically threatened by picketers. I can’t recall ever hearing of anyone being prosecuted for this behavior, which meets the common-law definition of “assault.”
My father had two relatives killed in the Roosevelt years by union advocates for opposing a United Mineworkers campaign to unionize a mine in Idaho. No one was ever prosecuted.
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