How do you know it is the Authority of the Church? How can you ignore what you are not sure of? We the laity, have no means to further divide or put together the Church's Authority, we respect it and obey it when we can find it.
How do you know it is not the authority of the Church when the authorities insist it is? How can you ignore what you are not sure of? Dividing comes from arguing, posting videos, promoting articles that are disparaging and otherwise getting snarky about what the Church does (that is legit). We have an opportunity to humble ourselves before God and request unity, tradition and every other good thing by personally eliminating sin in our own lives, praying the rosary for the Consecration, and otherwise accepting the peace God offers at all times, WITHOUT accepting modernism. We can still come out against false ideas, ideologies and nonsense. This is a balancing act of epic proportions but it can be done!