Didn’t he hate Irish people

Among others, yes. I'm thinking more about his elder gods/madness/chaos.

Now I'm imagining an eldritch horror from beyond the bounds of reality but it's just a pasty freckled guy eating a potato

HP Lovecraft was so racist that racists in the most racist time in history were like, “yo, that’s too much racism. Maybe dial back the racism a bit.”

Actually the opposite. He was much more pro-Irish than most Americans of his day. Even had an Irish protagonist in a story.