INAL and even further away from am American one, but I shall inboke the law of Cunningham . Having the company recognising or just generally being okay with the union formation makes the whole process easier. No hiding your unionisation activities and such. I believe the role of the union-buster is to dissuade the employees from signing up to it, see if there’s any dirt on union leaders to have then fired, and to just generally be a royal pain in the arse for everyone.

If I got the story right a bunch of Blizzard developers got fired because they shared company secrets/IP in the same discord server they discussed their unionisation work, so Blizzard’s lawyers found an easy way to get rid of them.