One must hold to what is true no matter who is not pleased. It’s not being superior to relate the truths of the Church. No one is excluded from attending any liturgy of the Church. The only restriction is they cannot receive the Eucharist without a dispensation if they are not in full union with the Church. Rather, it is an invitation to be reconciled with the Church and be in full union with her.
If one is an American, for example, he could not go to France and declare he has all the rights of the French because he is a fellow human being and of European descent–that doesn’t confer those rights on him and the French would be right to tell him so. Nor could he complain that he wasn’t accepted. One has to be French to exercise the rights and duties of the French. It is similar with the Church, except that non-Catholics may join in every other liturgy, be married to a Catholic without becoming Catholic, do all the religious gestures: kneeling, crossing oneself, dipping fingers into the holy water, etc. No one is being excluded for unjust reasons from the Eucharist. So, I don’t understand the seeming grudge some people burden themselves with over this, I really don’t.