Jesus gave us the roadmap to happiness. Love God with your whole heart, mind, soul, and strength and love your neighbor as yourself. That's the highway to heaven? And once we get to the finish line Peter and his successors hold the keys to heaven's gates.
The Church tells us, "Extra ecclesiam nulla salus," Outside the Church there is no salvation. But what exactly does that mean? Can only baptized Catholics go to heaven?
You can fool all of the people some of the time and some of the people all of the time, but you can't fool all of the people all of the time.
It's tie to never be confounded and fooled again by liars and deceivers working for the enemy. Some people become deceivers out of ignorance. We saw a lot of that during COVID. Low information folks trying to convince those of us doing the research that all the scientists and doctors questioning Fauci et al were quacks and we needed to get with the program. Most of them were just foolish not malicious. But others among the doctors, pharmacists, those profiteering, the mainstream media, etc. were not innocent. They deliberately lied and withheld the truth. And many people died because of it.
