Correct. Pronatalism is a just a front, sometimes for pure racism. Remember that Musk grew up in Apartheid South Africa. They're worried about demographic shifts away from white dominance of the US.

Also, according to the article, Musk "called children and called declining birth rates a much bigger risk to civilization than global warming," which is not so much pro-natalism as it is dismissive of global warming, because Musk no longer cares about electric cars and has pivoted to ventures that are much less friendly to the environment such as AI and mass rocket launches.