I'm sure God hears them, and acknowledges the sincere heart, and will lead them over time to right worship and to true faith. He has people in Babylon, and when they hear His call to come out, they will. There will be many Catholics in the resurrection along with others who from the heart sought after God and hungered for truth and righteousness, and lived fully up to the light they knew.
Jesus said that the time of his return would be "just like the days of Noah".....so in what ways are we living in similar times?
Gen 6:5-8 says....
"The LORD saw that the wickedness of man was great in the earth, and that every intention of the thoughts of his heart was only evil continually. And the LORD was sorry that he had made man on the earth, and it grieved him to his heart. So the LORD said, "I will blot out man whom I have created from the face of the land, man and animals and creeping things and birds of the heavens, for I am sorry that I have made them.
8 But Noah found favor in the eyes of the LORD."
Today we see wickedness everywhere and as God lifts the lid on this satanically controlled world. People are not even prompted to act with kindness or compassion when they see someone in trouble. Like Jesus said, "love" would grow cold because people simply don't care about their neighbors anymore, (Matt 24:3-14)......those people who are living on the streets whilst the houses that they were evicted from remain empty and are often vandalized, are proof of the heartlessness that has invaded to world in these "critical times, hard to deal with". (2 Tim 3:1-5)
Noah 'preached righteousness' to the people (2 Pet 2:5) all the time he was building the ark, but not a soul responded......instead they mocked and ridiculed him. Noah's task was two fold....he was told how to save himself due to his obedience to the command of God....and also he gave the people opportunity to listen to his message of salvation so that if they refused to listen, he was not found guilty of not warning them of what God was going to do. (Ezek 3:17-18)
He not only responded to God's command, but actively put into practice what he was told to do....and it was not an easy task, possibly taking many decades to complete. And since he was childless when he received his assignment, and had three sons who married and helped him complete his commission, the people would have received a thorough witness about God's intentions and why he was doing it.
The world of today has also received a thorough witness concerning the time of Christ's return as judge of all the earth....so how many survived the flood? How many will survive the end of this current world system? Jesus answers....
"Enter by the narrow gate. For the gate is wide and the way is easy that leads to destruction, and those who enter by it are many. For the gate is narrow and the way is hard that leads to life, and those who find it are few." (Matt 7:13-14)
Again we see "few" being saved....the majority are traveling blissfully ignorant......on the wrong road.
Those "hungering and thirsting after righteousness" need to hear the good news about God's Kingdom, (Romans 10:13-15) but unfortunately their churches have little to no knowledge of it.....too busy expecting to go to heaven without having a clue as to why God created humans to live on earth, yet promises to take a chosen "few" to heaven.
When we see many churches gravitating over to side with the whole gender confusion movement, don't we have to ask how on earth they can possibly fit that stance into the Bible's clear direction regarding males and females and the roles played by each? (Eph 5:22-23)
We also see many church goers divorcing their spouses on very flimsy grounds, when there are only two things that dissolve a marriage in the scriptures....adultery or death. (Matt 19:4-6, 9) These issues crept in and took root gradually because of human imperfection and selfishness. All sin is based on those two things.
So the Bible's criteria on what we have to do to be saved is clear....and God will not alter his standards for anyone.