POV of a pale skinned mixed descent male, I would say you don't look menacing or intimidating. Apart from the first pic where i feel bad because you look sad, the photos give a friendly vibe. The only thing I can think of is if your walking movements are triggering to racists. I know one guy that claims he reduced the weird looks by training himself to walk like a white CEO. Still got a lot of racism but supposedly a lot less.
People are also just inherently racist around these parts even though we often convince ourselves otherwise. I had one weird incident where I was talking to the only black guy in the work facility about how we were our respective family's tech guys, and after the work orders sent us in different directions, the little Filipino lady asked "how do you do that?". I was confused as can be, but it turned out she meant talking to him. On the other hand it happened again another day with different wording from an Asian guy too, but I feel like he just wanted to also talk to him... I guess it's just RNG.