>>213481510 (OP)
Same here.
Every American, African, and East Asian I've interacted with at my research institute here has been polite to me (I haven't interacted with Hispanics).
These individuals belong to the upper social and intellectual strata, thoughbeit, so it's unlikely any of these people use websites in the gutter of the internet like 4chan or even garbage like twitter, instagram and tiktok.