Way too much Schadenfreude over LA's growth rate.
I don't see a problem with New York growing faster than LA. Immigration has slowed as have birth rates, many more people live closer to New York, which has a lot more higher paying jobs across a broader range of industries, and then there are the angry white middle class who seem to have fled LA by the millions over the past 30 years. Southern California has swung LEFT while those who hate that seem much more apt to move to more politically hospitable places like Arizona, Idaho, Texas and Utah.
And that doesnt even begin to address housing costs, perceived tax burdens on individuals and businesses, that give right wing media so much fodder.
I mean, there's a lot we could talk about to try and explain away LA's slowing population but keep in mind folks, Greater Los Angeles has grown by 9 million since 1980, doubling it's population.
Lastly, as evidenced above, the growth rate across the country is slowing down almost everywhere-Austin's growth rate is down from previous decades, Dallas too, Houston too, Phoenix too, etc.
Every metro will experience a slowdown, much sooner than most people realize.