Rex
The attack on Afghanistan was not justified. It was based on faulty intelligence. Further, 911 was carried out after decades of US interference in the Middle East, starting with Palestine. It is particularly relevant that the official US report on 911 did not consider retaliation as a possible cause. 

Then note the attacks on Britain, Germany France, Italy, Canada. Every one, like 911 was carried out after those countries had attacked Muslims. They were all retaliation. 

We should at least try to be honest in our discussions. We are the bad guys.