[pc86]

Why is this the one time someone is expected to disprove a claim rather than the claimant being expected to provide evidence?

If you're making the claim you need to provide the evidence.

Most people would say that a persistent disparity means it's possible there is discrimination, but it's not definitive proof.

[tbrownaw]

I read that question as a suggestion that the claim is unfalsifiable (ie, bullshit, unscientific, etc).