Ishbia wouldn't. James Jones certainly would... and all he (and Lebron) have to do is convince Ishibia that Lebron is legitimately considering coming here if we draft Bronny. Meanwhile, the Lakers have to consider the possibility of Lebron leaving if they don't grant his wish and draft his son.
The play here isn't that they are trying to drive up the market for Bronny, they're trying to leverage the Lakers... and James Jones is happy to play along since he really has no intention to use the draft choice in any other case anyway.
And if the Lakers don't play along with Lebron's wishes, well maybe he does jump ship for the Suns... and that works to James Jones benefit just as well, since he'll get credit for it.
Apparently the point we were making went over your head.