Both can be true. The number you really need is what percentage of black people with a CS degree end up actually getting a job offer.

And highly publicized diversity efforts by tech giants does not necessarily reflect what the average company in Ohio is doing. The news is not the data, so yeah, you really do need more evidence than "it's what I heard".

I'm sorry, I'm black and this is not my experience. I will not bother posting evidence either, because why does evidence matter when you already know something to be true, right?