I don't think that's an unpopular opinion really. Unions are supposed to be an adversary of management who they negotiate with, and depending on who wins the election they are an ally. There's a conflict of interest. So naturally the group that supports the person that wins the election will have a favorable contract and be able to grow their union as that's beneficial to the political party and the union.

At the very least states should implement laws and statutes that define limits and rules such as union compensation must be paid with the current years revenues and not with bonds that are paid for by future generations, etc.