Not all strikes are, but it seems many are.
There's a garbage strike in Oakland now, which sucks, but teachers, nurses, or even policemen do this as well.
The Montreal police strike of 1969 resulted in a crime spree.
I cross a picket line if I want to.
If I need food (no car), and some dudes are standing around Bristol Farms in SF w/signs, I don't respect them much.
Some people are working hard for less, and are thankful, and other folks just want work.
Well, I got that off my chest.
Take care. God bless.