I live in the Boston area, where we have a huge ethnic-Irish population.

And when it comes to stupid, simplistic, superficial stereotypes of the Irish, many of these are among the worst offenders!   What it means to be "Irish" in much of Boston is to drink green beer on St Patrick's day and sing "Danny Boy" at the top of your lungs and wear a pin with a shamrock that says "Kiss me, I'm Irish".   They know little or nothing about traditional Irish music or instruments, Irish history, Irish writers or poets, Irish politics, etc.

We have very active folk and literary communities around here, too - and the members are a diverse range of ethnicities, but I would say mostly not Irish.   And I think the non-Irish folk and literary communities here are doing a better job of preserving Irish music and literature than most of the true ethnic Irish in Southie (an Irish part of Boston) are doing.    Somebody's gotta preserve Irish culture and history!