Worked in the City Centre since '98 and travelled through Manchester from school on European match nights 15 years before that. So I've seen most teams and their fans in the City Centre.
Without doubt, Ajax were the moodiest, self absorbed, arrogant bunch I've ever seen. A million miles away from the likes of Bilbao last year, who embraced what a special place Manchester is.
Leave 'em to it. Perhaps one day the penny will drop?
As someone said on another thread, if this game was played in the 80's there'd be about 180 of them coming over wanting to be best mates etc.
In the meantime, let them spend their afternoons hoovering up discount seconds in Sports Direct, before intimidating people on the streets of Manchester.