The IQ distribution of men and women is slightly different, and this is essentially settled science (it really is, however much we might pontificate -- our genetic past rolls the dice more with males). The male curve is slightly fatter, yielding larger numbers of exceptionally high and exceptionally low members. This means absolutely nothing if you have a male with an IQ of 140 and a female with an IQ of 140, however. Nor does it mean a 100 IQ male should be working at Google because there are slightly more high IQ males born.
We are smart enough to understand the difference between set probabilities and individual traits. Right?
because the distribution of women in tech has changed drastically in the last 50 years faster than evolution's say in the matter
Obviously there are social factors. That is indisputable. But at a point the gains in leveling the sexes for some domains become harder to get because there are confounding factors. Women in engineering has stayed virtually constant for several decades now.