The xenophobic point's been made, Show, and the op agreed to go and find out the difference.
That wasn't the main argument, though. Not when it became apparent that the OP was objecting to A calling B 'mad as a box of frogs'. And they considered it to be 'racism' because at some point on ANOTHER thread, B had mentioned that their DCs were in the French school system, and naturally A would have searched, found this out and picked an
insult accordingly.
Last time I looked the thread had moved on to offended badgers and licking hallucinogenic toads.