American Catholics aren't really a monolith on this matter...or any. There are substantial differences between Catholics who seek out Jesuit parishes and those who seek out the Tridentine Mass and people who are just achieving physical presence and thinking about kickoff at 5:00 PM Sunday Mass to fulfill obligation and get out ASAP (no choir please, keep that sermon snappy). All of these are spiritually valid approaches imho.

The same is true here, yes. You'll see widely different stances and practical approaches to topics like immigration, premarital sex, and so on. Some people are strict, some people self define as catholic but only see church during weddings and funerals.

Putting effort in triggering the end of the world is nowhere on the spectrum though. I think if you told a priest you're pushing for that he would be seriously alarmed, like calling the police alarmed if you hold power.

It remains a fact, though, that the Catholic Church doesn’t teach these things about Armageddon.

> American Catholics aren't really a monolith on this matter

No, but as a general rule, Catholics don’t and have never fretted about the end times the way all sorts of Protestant sects have, historically. Which is curious given Matthew 24:36 and all the hullabaloo Protestants make about being “scriptural”. And perhaps more importantly, because it has authority on such matters, Church teaching makes no claims about when the end of the world will occur and it never has, because it cannot.