In my opinion...
Lots of American workers need to be in a union these days to protect their basic standard of living from exploitation. Companies have been making enormous profits in recent years, but not sharing it with the workforce. The top executives and Wall Street have done very well.
The telecom carriers don't seem to treat their workers very well, and the carriers sought to eliminate unionized jobs inherited from the old companies.
Unfortunately, today's unions are either extremely weak or out of touch. Some unions are still fighting ancient battles that are no longer relevant. Some are fighting for narrow special interests, not the overall workforce.
they're very weak.