OK, let's look at different sets of people.
My argument is that you cannot expect uniform distribution of career choices either by race or gender.
You can't expect exactly 13% of cops to be african american or exactly 50% of physicists to be female.
Let's look at hispanics and asians.
Asians outnumber hispanics in STEM 9:1
Hispanics outnumber asians in History 3:1
Don't have links to hard sources at hand since I'm on mobile, but even anecdotally I think almost anyone would agree that hispanics are outnumbered by asians in STEM.
Ethnic chinese are strong in STEM not just in US, but almost anywhere. You can take any country with a significant chinese diaspora and you'll see the results are about the same.
Can you make a compelling counterargument that hispanics are brought up in a way that specifically encourages them to learn History?