You're from Derry, you shouldn't need educating on these things. Bloody Sunday was an atrocity, some might even say terrorism when the British Army following instructions from the British Govt indiscriminately killed catholics on a civil rights protest. That is deplorable and was the catalyst for the worst of the troubles over next 26 years and encouraged many new Republicans to join the movement. Most people just want to call the IRA terrorist scum without ever understanding the sectarian state they lived in nor admitting that the British were partly responsible. Killing innocent people can never be accepted nor condoned but that doesn't mean you can't sympathise with the position they were in.
The last part of your post just shows what an aggressive poster you are and I'm done with you quite frankly. Every post is the same, you're the most defensive, highly strung poster I've ever seen on this forum and that is not an easy achievement.