What, particularly, is so vile about this insidious attempt of insurrection towards the American dream?
I am not sure I understand your question, so understand I will answer what I think your question is asking.
What makes this bill so odious is that it will basically force all of us into unions. While that is not something explicitly stated in the bill, it will create a situation where those who are trying to establish a union know exactly how each and every employee is voting. Then unions will "creatively persuade" (read coerce through threats against [rp[erty, person, and family) of anyone who votes against unionization. It would deny freedom of conscience to anyone who disagreed with the unions.
Then, once a union is established, the union has no reason whatsoever to negotiate in good faith with the employer. Why? Because the union can reasonably assume that the government arbitrator would give concessions from the employer that the employer would never give at the negotiating table. Basically the same people that do not believe that father's should have any parental rights would also have no reason to believe that a business has a right to a "profit".
This ultimately would serve to deprive each of us of our economic freedom and ultimately our prosperity as motives for innovation and expansion dry up.
Without our economic freedoms, including the right for each of us to negotiate our compensation with our employer without the unnecessary input of the government we are no more than peasants. I have no desire to serve a tyrant. Whether he is the government or a union boss.