I have been praising Ja Morant about his ability even if he's not that gifted with height because the kid can lift up his team and can even move like he's unstoppable to the point where we can say that this kid might be good and all but his skills will make him prone to injury just like Derrick Rose on his prime.
The kid has still lot to improve on the ring and he has all the time because he's still young, but he need to choose his battles wisely because that hype his making won't be around when he is stuck with an injury and saying that line that he'd beat MJ is an overstatement. There's noting to argue about MJ's skill.
There's nothing to argue about MJ's skill, yes. However, he played in a completely different era where defense can win games. Today's NBA have evolve so much that a good defense is underappreciated not because today's player does not play defense, but because majority of the players today has unlimited range.
Many fans thought LeBron and other superstars today won't survive the 80's and 90's.
About Ja's statement about MJ, I don't find it arrogance. The kid's building his confidence as he continue to improve. He's actually a very impressive player being unstoppable regardless of his size.