It's literally what your reply to my first comment is stating
What do you think "formally request to end their association with their labor union" means?
>formally request that the National Labor Relations Board end their association with their labor union if they feel that the union is not adequately representing their interests
>At this point, any strike action taken by the workers may be termed a wildcat strike, but there is no illegality involved
Which is stated in wikipedia after:
>Wildcat strikes have been considered illegal in the United States since 1935
>Under the 1935 National Labor Relations Act (NLRA), federal courts have held that wildcat strikes are illegal and that employers may fire workers participating in them.
Your interpretation doesn't hold. All it's saying is that you have to not be affiliated with a union, then a wildcat strike is legal ("no illegality involved").
It says that because you can't be in a union and do a wild cat strike. Not in a union? You're free to. You're misreading it. I'd encourage you talk to a lawyer if you have any doubts.
Because this is what an attorney told you or you're relying on your own interpretation of the plain English text? It's pretty clear, words mean things and I encourage you to look up the definition of words like "request" and "end" and "association"
If there isn't a union then it wouldn't be considered a wildcat strike at all, therefore there must be a union at that workplace for it to be considered a wildcat strike and the person must be unassociated with that union due to inadequate representation for it to be a protected wildcat strike