Electing a union is not like a store purchase you can easily return if you end up being disappointed. If the MNA is elected and certified by the NLRB as the bargaining representative, the union is likely here to stay. The process to legally remove a union is difficult and, under NLRB rules, Essentia leaders can’t help.
If the MNA is elected and MNA and Essentia reach a contract, then all nurses in the bargaining unit would be covered by all the terms of the contract – even if it includes things you don’t like. Through good-faith bargaining, you could get more, keep what you have now, or end up with even less favorable terms than you have now. But no matter the outcome, the MNA will expect you to pay union dues (or service fees) amounting to $914.40 per year as a condition of continued employment.