Salaam,
The only difference between a person born to a Muslim family and revert is when Allah swt chose to bless them with guidance. After that it is up to the individual what they do with the opportunity afforded to them.
I will say this though (tongue in cheek) the best generation fo Muslims was the first generation...and every last one of them was a convert. lol This was a tricky argument I told my husband when he teasingly said he was luckier than me for being born into a Muslim family. Once I phrased the first generation argument he laughed and said "You win!"
Wasalaam
Masha' Allah sister... Your argument is non-disputable.. It is typical of cleverness of our jewish cousins.. LOL..
.