Oh! Johnny! So all Higashitakas in this universe are part of the Joestar bloodline? And Kira is part of it now too? The plot thickens!
Also, Johnny named his son "George" after his father, meaning that Johnny's father really had a genuine change of heart, since he kept loving Johnny enough even after he was disqualified from the race so Johnny named his son after him. If he still hated his father, he would've never named his son after him.