Catholics disagree with the Pope on many issues. Many of them don’t have a problem with contraception. They use contraception, they have abortions. Many of them believe that women should be priests etc. They are not excommunicated by the Church, they are not denied Communion, they are still considered Catholic.
Indeed, if the Catholic Church proclaimed that only those who believe in the official policies outlined by the Vatican are Catholic, the Catholic Church would empty in a short order, at least here in North America.