I'm not sure what motivation you have for highlighting someone's skin colour as you mock them online - it's not a common thing for people to do unless they are using it as a racial slur - hence his words in response.

Not everything has to be taken in the context of race.

I would not be speaking about 'race' unless you yourself had brought it up in the initial comments, so from my POV it is you that has made this about race in some way.