In the 4th century, Pope Liberius (probably) signed a document stating that Father and Son don’t have the same nature, contradicting the Council of Nicaea. And we are still here.
Pope Honorius I was anathematized by name along with the Monothelites by the Third Council of Constantinople (First Trullan) in 680. And we are still here.
In 897 Pope Stephen VI (or VII) disinterred the body of Pope Formosus and held a trial against the dead Pontiff, declaring null his papacy. And we are still here.
Between 1331 and 1333 Pope John XXII openly stated that those who died in the faith won’t see the presence of God until the Last Judgment, contradicting the dogma of the beatific vision, which will be formalized by his successor Benedict XII’s bull Benedictus Deus. And we are still here.
Saint Joan of Arc was excommunicated and burned at the stake in 1431 for heresy. And we are still here, praying her.
The Holy Office issued many censures against Father Pio of Pietrelcina, who later will be proclaimed a Saint. And we are still here.
We have had around 40 antipopes and one of them, the first, Hippolytus, has also been canonized. And we are still here.
That is why personally I am not remarkably worried for the formal answer to the dubia. I have always seen divorced and remarried people being admitted to the Holy Communion far before this document, so what will change? It is not a formal act that should worry us, but the substantial situation of Catholic structures that have lost their identity, unity, and often even their faith.
But since we have already sailed through very difficult storms throughout our history, I am sure that, good or bad, God will judge this period, we’ll keep on being here.