Racism isn't always obvious and can definitely be subtle. But actively discriminating against a whole group of people based on ethnicity is cut and dry racism.
The grand parent said he was getting into "murky waters" but in fact he is fully submerged in the deep end of racism.
I think there's more informational value in hearing goog-anon's perspective than in condemning it.
Yes, goog-anon is doing candidates -- and the lawyers in Wilberg v. Google -- a huge favor by admitting on the record that there's explicit racial bias in their hiring process.