The problem isn't that "Silicon Valley doesn't care about black people," it's that those issues they do take a stance on have a clear, prevailing opinion inside the community they're attempting to reach -- and they can use that to make money.
The black community is not monolithic, and the opinions expressed by this man w/r/t police brutality do not encompass the views of everyone these companies might want to reach. Therefore, it's not a solid money-making proposition to take a stance on this issue.
A more appropriate assessment might be, "Silicon Valley only cares about itself and the interests of black police brutality victims don't intersect with that."
