Free traitors hate overpaid over benefited ( I agree with that BTW) union workers so much that they want communist slaves to build their crap for them instead.
It has nothing to do with unions; the fact is they want to get rid of their non-unionized white collar workforce as well, who’d become accustomed to such luxuries as weekends, vacations, etc.
Unions are the worst-case scenario, but the fact is that American wages themselves are more than these companies want to deal with.