MN - there is a long and bloody history of conflict between GB and Irish republic which still is not fully resolved, so making remarks about how the Brits don't like the Irish, without so much as a punch line (again I ask for the punchline) is not really much of a joke.

Do people find it funny if I say "oh the Qataris hate the Jordanians" lol... I doubt many would find this funny, I don't, just not a joke.

perhaps you need to understand what a joke is before attempting one?