Very unpleasant experience at Connolly's Books Spoiler

Don't know if you guys know this spot but it's a boutique book shop in Temple Bar. I came in to point out that one of the Palestine support posters in the window displayed the phrase "from the River to the sea," which is used by some to support the genocide of Jews, and suggested to the manager that maybe the poster shouldn't be up with the others.

The manager disagreed, and when I asked him why, he started yelling at me: "Who do you think you are!?", "How could you be so arrogant!?", and "I'm trying to eat my breakfast, why would I discuss this? Get out!" I wished him a good day and left.

I'm a tourist from the US whose mom's from Cavan (she helped invent copper wire I know). This experience just really caught me off guard as it just did not match the friendly Irish hospitality I've experienced everywhere else. Posting here as I'm hoping if one of y'all know the management or owner and can maybe talk to them about how to talk to people.

Aaaaaaand were back to disliking yanks again.

Pissing myself laughing here, the Communist party of Ireland owns the shop, check their socials if you'd like to know what they'll think of the poster on the wall, next to, if I'm not mistaken, a poster of lenin.

Edit: lol he posted a Google Maps review