It is your own perspective and reasoning that the elect can be lost and not delivered from this world when Yahweh would take the believers out to be with their God when the judgment will come, as if their salvation would be lost, because they hear and believe some false teachings. But there is not consistency with that. Everyone believes something that is false. I don't count myself an exception, and am open to learning things I missed, from anything reliable for that, and certainly things in the Bible. How can you know everyone believes some false things? Find anyone who does agree on everything with you. There are no persons you can find who agree on everything without exception. Would all people be left behind, but one person? No, and not even one person would have everything right. The works of faith are important, which show us that there is the salvation in Christ with the faith having relationship through Christ. There are church-goers who really don't change how they live the rest of the time when they return from church, certainly. But believers are not losing faith, or salvation, as they are sealed, and they still learn and will change, as God is still involved. Others would slip away, sometime, sooner or later.
There is nothing of Bible passages showing nothing is to develop now before believers are caught up to be with their Lord. There are passages showing us responsibilities to answer to while we are here, and those are to continue, whatever we think about our not having to deal with consequences from what we choose, and do, while others still would deal with the consequences. We would not be delivered from that. We who are believers will be delivered from the time of judgment on those in the world who are unrepentant in their rebellious wickedness and destructiveness. God definitely warned of that.
It is foolish to dismiss God's will. The fool will live like there is no God.