Obviously, the issue before the Pope is whether or not such regularaization should proceed, and if so under what conditions and requirements.
He has absolutely no leverage over them until they have returned to the Church.
Also, failure to “believe” in the Holocaust is obviously lunacy and a denial of reality that makes it clear that the person who holds that position is not rational.
But it’s not a heresy, and there are many irrational people in the Church, and as such they receive the pastoral care that is appropriate. In his case, it will probably be removal and seclusion, because of his public status.
Obviously, the issue before the Pope is whether or not such regularaization should proceed, and if so under what conditions and requirements.
It is most illogical for you to champion belief in Churban 'Europa' while classifying so many other events of Jewish history as "mythology."
Once again atheists and enlightenment types avoid the unpleasant fact that the history and survival of the Jewish People is the greatest evidence for the existence of G-d in history by turning them into chr*st-figures in an anti-religious "passion play," suffering and dying at the hands of "religion" in order to bring about a glorious G-d-free secular age.