Catholics believe the Catholic Church is founded and currently led by Jesus Christ.
Therefore Catholics believe it's not a good idea to tell Jesus His Church doesn't matter and is in fact wrong, and that His Church isn't really His, if one wants to go to Heaven.
Obviously a non-Catholic would not normally share those concerns.
“Catholics believe the Catholic Church is founded and currently led by Jesus Christ.”
I’m sure that it is. As are the Protestants and the Orthodox. There are some exretemely snooty Catholics that are going to be sorely disappointed in paradise having to be surrounded by all these filthy non-Catholics.