As usual, people are defending it because he's supporting his kids, etc etc.
Once again though, it's setting the bar really, really high. It's great that he believes in them that much, but is he preparing them for setbacks? Success doesn't always come quickly in the NBA, and even for players who do have an impact right away, many of them still had a ways to go before they became the all-time greats we now know them as. And yes, you need confidence and to believe in yourself, blah blah blah. But humility and knowing how to properly deal with failure and setbacks are not only admirable traits, but extremely useful ones.
Saying stuff like this is basically painting a target on his kids when they get to the league. Players like LeBron and Westbrook are going to go at him, and they're not going to handle him with kid gloves. He's no longer going to be a big fish in a small pond; he'll be in a league that's weeded out the guys who weren't big enough, strong enough, athletic enough, or talented enough to make it in the world's premiere professional basketball competition. They're not going to take it easy on him, and he's not going to find them easy to contend with. He's going to get trash talked. He's going to have moments where he's embarrassed, and doesn't perform well on a bigger stage than he's ever been on. If he's a high lottery pick, coming in with all this hype and all the obnoxious things his father has been saying, the fans and the media are not going to be patient, or kind, if he doesn't live up to expectations.
If that all happens...will he handle it? Will LaVar handle it? Will he know how to support his son? Will he support his son, or will he cut his losses and start favouring the other two as they try to make it in the NBA? Again, it's fine to have confidence, it's good to be a supportive parent. But this approach is misguided and dangerous. The whole "living through your kids" stuff, and trying to build a brand to make money off them, is kind of sick, too.
And since MJ's name has come up in all this...can you imagine what he would've done if he were in the league and in his prime today, upon facing Lonzo Ball for the first time? I imagine it would make the LaBradford Smith incident look like a friendly shootaround, all while having a few choice words to say to LaVar on the sideline. Few players have ever come close to MJ's maniacal competitive drive, but don't let the trainwreck of an All-Star Game fool you; in games that count, there are great players in the league today who take things very seriously, and have the talent to light up and shut down opponents when they've got it locked in.
LaVar better hope Lonzo is ready for that, and that he's a hundredth as good as he claims he is. Reality could be a very harsh mistress indeed.