Sorry, FRiend, but I do not accept the “young earth” theory as being necessary for Salvation. For my thoughts, ready my #141.
If we have faith in God’s Grace, that is enough!
The 6000 year old Earth is not a theory, it is the clear statements of the word of God.
The geneologies of the Bible are in there to exactly show the lineage of Christ, and definitely show his birth to be at the 4000th year. The supposed conflict between the two strings is false; the persons left out of one of the geneologies was covered in prophecy, and was due to their deeds.
Unbelievers play that game.