The working class jobs are the most unionized ones. The unions also started with actual battles (wikipedia has examples since US history class often does not), from people with traditional values. I think the division is much more harmful that than you think.
Sorry, I am not entirely sure what you are trying to say...
Unions are type of collective fight in form of strikes and bargaining, against exploitation and are the main tool within the class war. Actual battles happened because the ruling class tries to prevent or forbid them. At the end it is a question of profit splitting not a question of pure existence for whom you are. I would go as far as to say one is the example of class war and the other is an example of fight against fascism.
