I'll admit, I know little of Twitter or other tech companies hiring practices.
But, I'm pretty sure they want the BEST possible people working for them.
I don't see any conspiracy to keep white guys out of the NBA nor do I see any credible plan to keep blacks from working for tech companies...
In the end I see no racial conspiracy in the NBA or in the Tech sector.
Firstly, you just said you knew little about Twitter's and other tech companies' hiring practices, so how would you even be able to make an informed opinion on whether or not there's a conspiracy? Even if there was very clear evidence of a conspiracy, you just said you knew little about the subject. Would anyone expect someone who has no knowledge of a particular subject to have any relevant insights on that subject?
Secondly, I've never made the argument that there is a CONSPIRACY and most people who are proponents of workplace diversity don't talk about conspiracies. What we do acknowledge is the persistence of an environment that perpetuates a closed, exclusive network.
Let me add that the lower % of blacks working in tech companies is "proof" of racist hiring , is flawed.
That would be like saying the low % of white's in the NBA is "proof" the league has a racial bias for blacks.
Equal opportunity doesn't always end up with equal results.
This is the mistake many make when it comes to race and policy.
They wrongly assume that an equal shot will, by default, give an equal result.
Tech companies want results , just like pro sports teams.
No, it wouldn't and that has been the point I have been trying to make for this entire thread. I would love to make a long-assed post about this, but I feel like on this board, the longer your post, the less likely it is to be read and understood, so I will try to make some points with a reasonable degree of brevity.
Look at this chart:

These are the results of a survey that was run by Inc. magazine about how and when people get their jobs. Different sources have conducted similar polls and studies and the results have mostly been similar. I can't find it now, but one studied showed that 60% or upper middle class jobs are never publicly advertised because they are filled in-house or by referrals. So, if a business is mostly populated by one type of worker and those workers' social circles are populated by one type of acquaintance, then the cycle of one type of worker within a closed network is perpetuated. So that blows up the idea of "equal opportunity." It also blows up the idea of only hiring the best possible people. This is the opposite of how pro sports works. Pro-athletes are actively and aggressively recruited. People don't get to play in the NBA because of who they are friends with. The idea that the general work force is made up of people who got their jobs because they were the best and brightest is generally a myth. These are just a few MORE of the reasons a comparison between pro sports and almost every other profession makes no sense.