I don't believe God made anyone for the purpose of just sending them to hell with no chance for salvation. That would make a mockery of Jesus' suffering & death.
And Peter, who, like Paul, had a 'hotline' to Jesus, wrote, in 2 Peter 3:5," The Lord is not slow about His promise, as some count slowness, but is patient toward you, not wishing for any to perish but for all to come to repentance."
In other words, He gives EVERYONE the chance tobe saved. Peter didn't just make that verse up.
And we see, in Jesus' dealings with Iscariot that He have him the chance to repent when He made it clear to Judah that He knew of his plan to betray Him by saying He would be betrayed, & it'd be better for His betrayer if he'd never been born. And He even told Judas, "Go quickly to do what you must do".
Had Judas repented then, someone else woulda betrayed Jesus to fulfill prophecy. But Jesus, knowing Iscariot's mind was made up, still wanted to be fair & let him know the coming betrayal was known to Jesus. Yes, Judas COULD have repented, since the deed wasn't yet done!
Can't speak for anyone else, but I heard the word of God often enough for years til I finally BELIEVED it!