In Harris v. Quinn, the Supreme Court ruled that home healthcare workers who are not members of a union do not have to pay dues for the services received.
It is better than could be expected, since they could have applied this to all public sector unions, effectively going right to work nationwide.
What I do think is that it is clear that this, along with an earlier decision, Knox v. SEIU, are an attempt to reverse the National Labor Relations Act via the death of 1000 cuts.
Eventually, assuming that the current 5-4 reactionary judge/real judge split remains in place on the Supreme Court, they will be making it impossible for labor unions to function in the United States for the next decade.
This is partisanship masquerading as an impartial judiciary.