Did this actually happen at the Amex? There is nothing else on Google except noted gammon Beach Seagull reporting the same thing in another racist abuse thread last year.
Did you report it at the time? Are you Beach Seagull's second account?
I note this happened at West Ham in 2015, and Kevin...
Would it be OK for the players to walk off if we were losing?*
What would the opposition have to do to justify us walking off in a winning position? What do you consider unforgiveable?
* (still not convinced you're actually part of "we", by the way...)