This ^ IQ tests are relative, not some absolute inherent value.
They also mean fuck all imho - I have a high IQ, that’s very up and down- very high verbal, average performance, the rest in between somewhere. As is typical for my adhd. It’s useful to know for reasonable adjustments/disability support during education, but it has zero influence on my ability in any way, which is heavily influenced by many other factors.
Plenty people with lower IQ scores will function much better than I do, have greater standard successes than I will, because of not having those varying factors. It’s a useful test for kids/young adults in education, like you say, but not any absolute measure of intelligence in any meaningful way.
How fucking ghastly. I hate this person now.
And he is uninformed about the way IQ is influenced by many different factors, including income, cultural differences, amount of schooling, quality of that schooling, general access to books at home etc etc, and how IQ measures only a limited range of skills and not others (no creativity in it, no memory etc), how the average IQ is changing over time in several countries (which it shouldn't be doing if it's measuring something innate only), and how when researchers many years ago created an IQ test reflecting the environment of someone growing up in the African rural areas children who grew up did well in the test, those who did not grow up there did poorly.
And he is uninformed about the stereotype risk which affects test-taking abilities by overloading certain brain circuits with stress responses. This matters both for girls of all races when they are primed to think of their sex before the test and it affects all minority children when the test-taking is invigilated by people of the majority race and so on and so on.
Also, Binet intended the test for something quite different originally. it was to help teachers decide which children needed what level of help in schooling and was only applied to young children. Later the US government applied it to recruits in the military etc., but it should not be viewed as in any sense a comprehensive test of intelligence.
I have seen that asshole tweet horrible stuff on Twitter before, but this takes the cake. Though claiming that a quarter million trans people were also supposedly killed late last century tells me that he lives in his very own cloud-cuckoo land.