I dunno what ur experience is on the Italian side but Irish dont take kindly to any american sayin their irish, Im all about bein an American first, only this country could make me this fucked up but to know ya roots is a blessing and ya gotta find away to implement it into your world and personal view, IMO
Every Italian immigrant I know gets happy as fuck when they hear ANYBODY is Italian. Shit, you could be .2%...to them you're still Italian. And that qualifies you for food and wine...lol. There are some Italian "snobs" though. My uncle's wife is Italian, her parents are immigrants, and they are rude as fuck towards my mom and I. Because to them, 50% means you ain't shit. Some folks are like that.
As for Irish, I dunno...it depends on who you talk to. I told folks in Ireland I was part Irish and they were buying me drinks and shit. Not sure how they felt about it, but they were friendly as fuck.
And yea, Watermelon Beer from 21st Amendment Brewery in San Francisco. I dig it.