Whether one agrees with the strike or not, nobody but NOBODY should be scared to go to work.
I personally abhor the practice of intimidating people who cross picket lines and I will NOT be engaging in that practice.
Everyone has their own reasons for deciding to work or not and those decisions should be respected.
People who work should respect those who don't, despite the damage they're undoubtedly doing to the company's finances and its reputation.
People who don't work should respect those who do, for they'll have thought long and hard about their decision to report for duty and I'm sure it won't have been an easy decision to make.