Your opinion on unions is not germane to this case. This case is about whether or not the labor relations board has the right to adjudicate labor issues of law that would normally take place in a court of law with judges and jurors selected in the normal ways that judges and jurors are selected, as opposed to what we have now which is an appointed set of arbitrators that use their own special courts, outside of the US court system, to mete out justice. The agency will likely lose this case, and so a lot of labor relations caselaw will be subject to re-litigation. (In case you want to know what I think about unions, apart from this case, personally, I'm ok with unions for jobs that have actual safety issues, like mining and steel making and even some manufacturing where you are in physical danger, but most of the time unions are just professional rackets that specialize in administrative overhead, being squeaky wheels despite rational protests to the contrary. Plus, in a union shop, you cannot negotiate yourself a better salary than your peers even if you overproduce. That, to me, is a fail.)