I'm sure if a first team England game is ever held at the Amex there will be Palace flags like there would be at any other ground hosting an England game, just like there would be Brighton flags so not sure why shirts make a difference
He has a very good point, there were fans in Southampton shirts at an ENGLAND game, I saw them on TV, so why can't a supporter wear a shirt from another club in ENGLAND
Would they have barred a supporter in a Brighton shirt