Guy Fawkes night is a disgrace - they don't even attempt to see it from the Irishman's point of view
Are you calling Guy Fawkes an Irishman? Guy Fawkes wasn’t Irish 
Born in York, radicalised and converted to Catholicism as a teen. Pro-Spain and anti-Protestant, no obvious links to Ireland.
Guy Fawkes night is offensive to many Catholics, but not specifically to the Irish ones. Though I’m sure Orangemen will have found a way to make it so.
Irish Famine was not covered at my school either, I was dimly aware a harvest had failed and there had been a disastrous famine, had no idea the British government had any involvement until I was an adult. I studied that period of history at GCSE (1750-1900), we spent a long time on spinning jennies and Corn Laws. I got an A*, did a lot of extra reading, and I can tell you it was nowhere in the textbook or in the written syllabus, which I was using to revise from. That was 1994-6, I think EdExcel board.
Highland clearances I only found out about as an adult when I visited a museum in Scotland. The whole area is horrendously badly taught, and rarely discussed. As the whole Edward Colston episode demonstrated - people genuinely are not aware of what he did.