>The aforementioned "allies" are dangerous like bear-traps. Ostensibly they exist to deal with the bears. But they lay hidden in the brush ready to take off the foot of anybody who missteps, bear or otherwise. And you probably won't notice one is around until somebody steps on it.

This is an apt analogy.

This matches my experience

Funny how you neglected to mention the harm non-overt racists cause, and how it's often difficult to detect the danger they present.

I would wager there are more non-overt racists out there than counter-productive allies.

One of the principles of medicine is that the cure should not be worse than the disease.

At some level of activism, the remaining non-overt racists will be less harmful than the obsession to root them out.

Companies already pay a ton of money for sensitivity and diversity trainings that either do not work or even worsen the atmosphere of the workplace. This money could have been used for a better purpose than lining already fat pockets of Robin diAngelo and her peers.

I guess the prudent thing is to burn all the witches then.

The danger they present is nil until proven otherwise.