The key question here is: "What does 'inferior' mean?"
Groups vary.
But, I mean, 56% of young white women are technically crazy. Does that make that race/sex group "inferior?"
You have a Black and a Caucasian male in the US South - one guy is 7% ahead in maths, one guy 4.5-8% more athletic. Who is "inferior?"
White and Black US citizens both trail East Asians by a decent margin re IQ. Are they "superior" to us? Can they fight, these days? What's that fertility rate?
For that matter: I have a PhD, JD, IQ of 134-143, and not-totally-joking titles of nobility in a few tribes and small states. I have traveled widely, and speak four languages quite badly.
Am I your superior?
Words mean things.
Everyone who feels anxious about discussing race realism feels that way because they know that certain populations are inferior & they wish it weren’t so. By shutting down the conversation they can make reality disappear, or at least make a “racist” scapegoat carry the burden.