In what way? In 2016 I did have people approach me for being brown. I live in a liberal white enclave in NE Portland, so this is fairly common for me. Yes, it's extremely weird.
Yes, people approaching people on the streets of a major city due to their skin color to offer their condolences is unhinged. I didn't call all democrats unhinged, just the ones that do weird shit like that.
I'm not questioning your experience at all—the trouble is that you have a lot of context pre-loaded into memory, which readers of internet comments completely lack. If you don't want to come across the wrong way, you need to account for that beforehand. Basically how I often put it is: the burden is on the commenter to disambiguate. That's especially true when it comes to your intent, which is something only you have access to.
and as for the wall. I'm just saying how I feel.