Earlier quoted context omitted.
Can you share why these statements are controversial? They might be misguided or misinformed, but the underlying fact is that women are not as well represented in stem. Just because the reason it's more likely to be misogyny rather than any biological inclination, doesn't make it an outrageous statement in my opinion.
The difference in participation within STEM between men and women is not well explained by biological differences. Blow has repeatedly claimed that it is actually the primary factor and seems actively disinterested in other explanations. This is "controversial" in that it's a position that is not well supported by evidence and he has repeatedly used his platform in the past to make unsupported claims to the contrary.
https://www.sciencedirect.com/science/article/pii/S016726812...
Plus: Jon never said it's the "primary" factor, as you claim. He said it's a large factor, that doesn't apply at the individual level, but on average. Which is entirely factual and supported by copious amounts of research.
Just because people like you want to be offended by science, doesn't make it wrong, or controversial.