That's understandable, given how racial differences have so frequently been exaggerated and misused. Especially mental differences. Partly because they're so hard to measure objectively, being so tied with life experience.
Yes it is a shame we can’t study this topic as it is such a interesting area. It would be nice if people understood different doesn’t mean inferior.
The thing many people forget about those of us that are Neanderthal hybrids is that all us hybrids carry different parts of the Neanderthal genome. Pinning down what genes are linked to what phenotypes would be very, very interesting.
And still, being part Neanderthal, I am curious.