So Blair had no knowledge of the sexing up of the "facts". Is that really what you are claiming?
Where is your sense of justice for the people who are really affected.
If we cannot hold our own leaders to account for bad behaviour we are morally bankrupt and we should not be surprised when extremists seek justice for themselves.
At the time, there was no concrete evidence there were no WMDs, but what we did know was that Saddam had used them previously and that he wasn't complying fully with the inspectors. The only real reason why there was no UN mandate was because both France and Russia had too much at stake in Iraq so would never vote for it.
You go on about the hundreds of thousands killed because of Blair but the evidence is that during the conflict, about 24k were killed by US led coalition forces (according to the Iraq Body Count website https://www.iraqbodycount.org/database/ ). The vast majority are muslim on muslim killings which is what was happening before except it was Saddam that was doing the killing.