I can only speak for my school, but:
1. Are you thought about Daniel O Connell in school?
No.
2. Are you thought at all about Charles Stuart Parnell. A Irish MP in Westminster. He caused a lot of hassle for the British Gov. and would probably merit a mention.
No.
3. Are you thought about the The War of Independence 1919-1922. No-brainer this one.
Yes! No, not really. The answer is “no” again. I just thought that three "no"s looked bad.
We were not taught about any of these things at my school, for the simple reason that they do not figure hugely in British history. In our schools, Irish history is limited to those events that have affected us most - e.g. Cromwell’s escapades (don’t forget he wasn’t too popular here, either), the Battle of the Boyne (since that affected who ruled the UK), Partition (since it affects the make-up of the UK today) and how such events affect Northern Ireland today.
Remember that school time is limited - teachers cannot cover everything that has ever happened. By and large, events are limited to those that have had a lasting impact on our nation.
The only thing in your list that some might argue should be taught in our schools is the Irish War of Independance - but, again, this isn’t a big event in British history. We don’t learn about the American War of Independance too; this is not due to “deliberate obfuscation” either, but, like I say, merely due to the fact that teaching time is limited.