You're again, falling victim to confirmation bias by rejecting the best quantification you've provided yet.

Lets examine the data you've provided - 29% white women, 19% women of color, 21% men of color, 30% white men.

This data is entirely in line with the demographics of the US. About 50/50 on gender and 60% white. In fact, given google's global hiring reach, these figures are actually biased towards white people - while about spot on for gender. This entirely contradicts the point you were originally pointing to this twitter feed as confirmation of.