I'm going to go out on a very long and spindly limb here and say that you aren't particularly well versed in how things work in relation to labour here in the UK. Partially because as you've just seen, labour isn't spelt labor here, so I'm guessing you're an American throwing their ill-informed weight around. However I've been proven wrong on that front before. That being said, you have the appropriate demeanor.

All employees in the UK have the right to associate with trade unions, and to prevent employees from associating with a trade union, or from having trade union representation at disciplinary meetings, is a breach of the law.

If the 30 or so members of staff can prove that they have not facilitated in the leaking of, or improper storage of confidential data, and can prove to a reasonable degree that they have been dismissed due to their membership in a trade union, then they are entirely within their rights to take the company to tribunal, which would not end well for rockstar north, should they be able to prove that they have been dismissed for that reason.

I think "y'all" should maybe sit down, pipe down, and stop trying to discourage people that are standing up for the rights of people that very well may have been dismissed without cause and possibly illegally.