> At what point does it become a systemic problem, though?

When it's actually hard to get a job as a white male developer. We're very far from that point.

If Github wants to pass on solid talent just because of that person's race or sex, that's their (foolish) decision. It's a seller's market, and that talent will go elsewhere.

> Github is a major software company...

I don't know what your definition of major is, but Github is not it in my book. Don't get me wrong, they make a semi-decent product, better than anyone else at this point, but they are by no means the only solution in their market.

The problem will self-correct at some point once the lawsuits are filed and the cost of such efforts is visible to executive leadership and investors. Even if they settle the suits early on, it'll still be a very expensive lesson. Workplaces with problems like Github is apparently developing rarely get better on their own without first experiencing the consequences.