Having shrunk by 40% in the prior decade, union membership represented only 2⅓% of national population.
As a reminder, rule of thumb threshold for political change is 3.5% of population visible in sustained action:
https://disabled.social/@beadsland/112726427399684432
For further comparison, union membership dropped from 5⅔% to 4⅓% of Usian population since 2000.
1933's NIRA §7(a) did lead to twice as many strikes—tripling number of strikers. Yet even a national general strike wouldn't have moved needle for change.
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