I'm a member of a union that includes both office and field workers. It works well for all the big, common negotiations. We all want better wages, healthcare, retirement, hours, etc. But when it comes to working conditions, we have clear differences. The most recent example of "return to work" shines a light on this.
The field workers, understandably, don't give a shit about "return to work". Some even resent the office workers for having the ability to work from home. Meanwhile, some office workers will likely quit without the ability to work from home. My company has recently decided to completely remove the ability to work from home. In response, the union is completely split on how to react.
How should I approach the internal discussions? I'm hesitant to advocate for pushback because not everyone will benefit. On the other hand, no resistance at all feels like a concession of worker's rights.
TLDR: Work from home taken away. Should a union pushback?
That's how I'd use blue/white collar, too.
iriyan does raise an interesting question, though: are there any workers in either camp who are also managers? Maybe gang leaders in the linemen? Or a chief engineer who instructs you and a few technicians/clerks? These people, if they exist in your org, will be most used to people doing what they say. Are these the loudest voices in the union, too?