I know for first hand the the electrical union does have a benefit program established for work stopages and for unemployed members. One thing that I am quiet sure you would not see is an illegal working in a union shop. 
I am not going to say there are no corruptions in unions or greed, that would be foolish to think, I just know that when done properly it can and has worked. Standards are mostly better for the customer and the employee.  Some of the federal and state employment laws were because of organized unions.
		
		
	 
 
No doubt, I totally agree, without Unions in the early Industrial Revolution, we'd all be picking cotton.....those Labor Laws have become some of the most important laws in a workers life....and kudos to all Unions for the creation of much needed laws to put sweat shops, or thugs out of business.....
Don't get me wrong, I can respect Unions, its to often a simple lazy Union Steward, that gives an entire shop a bad name....to often I've seen companies dictate to Unions what will get accomplished or not....
I have and will never see a illegal working in a Union Shop, but you sure won't see an illegal working for any Aerospace Firm, period. Even on Commercial Programs. Now D.O.D black hole TSAR programs, you won't see a Mexican Born but American Citizen, working in some of those dark secret cavernous programs. Just saying, the tighter the program, TSAR (Top Secret Access Required), the less riff raft, yet, sometimes, the lesser the experienced work force, (only during start up of a new program), as time progresses TSAR restrictions loosen and those who jay walked once in their lives, are then allowed in, ie, TSAR restrictions cost experienced workers a job in itself, if you got so much as "one disturbing the peace", or any other minor non misdemeanor on their records. DUI forget it.....just saying, 
I know there are needs for Unions in non-developed nations- LOL-(busting your chops again)......honestly, yes, if done right, Unions can make progress. I'm not a Union Buster, yet, I see to much crap in this Commerce Killing State, of CA.
And, yes, only some Unions have financial assistance for striking employees, yet most don't, but they all say they do. I've seen my father working 2 jobs, over 4 times in my life, due to strikes, and not once, did the Union offer him or anyone else a dime for his kids milk. That was our reality....sad, but true. Those who have assistance for striking workers, are the minority anymore, to be honest, I believe the Union dues are spent more on Lobbiest in DC, than on their employees....
Not speaking in general, just on what I've observed in my career path...
again, please take no offense to anything I'm saying Big AL..... 
