You'd have to work extremely hard in 2022 to be unaware of obvious racist tropes. One poster literally spelled out three: haircuts, entourages, and even fecking dabbing, ffs! These are racist dog whistles most of us know by now, even the most oblivious of us. At this point, not knowing about them begins to look like outright refusal to see or acknowledge them, and it honestly feels incredibly disingenuous.
Note I'm not saying Souness himself is conscious of these biases, as he's a fossil, but if you think of yourself as a reasonably aware person, there's no excuse not to be aware of these often historic tropes.
If you're still in denial, try a quick experiment: put the words "white people policing black hair" into Google and see what comes up. Until people stop pretending this stuff isn't real, we'll make little further progress in antiracism, which is incredibly sad. It just takes people to admit they aren't as informed as they thought; honestly, that alone would be a great help, and we wouldn't constantly have to keep starting these conversations with the basics.