Rubbish.
Quoting what was said doesn't give the context or the inflexions of speech. Unless one was listening to it one doesn't know the full picture.
This, IMO, is a very good example of a "storm in a teacup" ie much ado about nothing, or more likely the "looking to be offended mob" seizing on the proverbial molehill and conflating it into the proverbial mountain.
BTW, if one professes to be British, not a good idea to be wearing the colours of a different country unless expecting to be asked where from.
If anyone is going to be exercised over something like this when the world we live in is in meltdown mode they need to get out from behind their social media screen and get out into the real world, IMO.