[Hebrews 11:6]

A very reasonable take on it—thank you. The alternative of Jews and Gentiles which I mentioned is also popular. Guess we’ll have to ask Jesus when we see Him.

[Angelino97]

Many parables have multiple meanings, but there's often a contemporary meaning that applies to us today.

The prodigal son might be a gentile latecomer, or it might be a Jew who rejected Jesus and came late to believe in him, or it might be any sinner.