Not a lawyer but I wonder how much teeth that law has. The GOP/Trump has put on a clinic on how to legally gum up the wheels of justice, it seems like unions could try the same. Delay, argue technicalities, appeal, rise, repeat...

For example: if you spend 2 months in court arguing about who organized what and what they're technically striking for, damage could still be done even with the strike broken up. Multiply that by a few major unions and it adds up.

You can already see a similar plan coming together with UAWs 2028 contact expiration plan. Its not a general strike, there's just coincidentally a lot of strikes at once.

Of course there's a stricter set of laws and leeway when you're not a corrupt oligarch so it wouldn't work. But it's fun to think about...