Final answer:
A court is most likely to deem a strike to be illegal when it violates laws or regulations related to labor unions and organized labor. If a strike involves violence or illegal activities, it is also more likely to be deemed illegal by a court.
Step-by-step explanation:
A court is most likely to deem a strike to be illegal when it violates laws or regulations related to labor unions and organized labor. For example, in many states, it is illegal for public sector workers to go on strike because it disrupts the functioning of society. Additionally, if a strike involves violence or illegal activities, it is more likely to be deemed illegal by a court.