Anything to pwn those libs, eh?
See, I can see how the actions of the US in 1980’s Afghanistan led to the events of 9/11. This is of use to understand that other similar actions in the future may have similar consequences as well.
I do not, however, think that there was anything reasonable about bin Laden’s actions. If I did, then yes, I would be condoning them, and supporting the deaths of the thousands who died that day.
An unpopular, but not terrorist supporting statement that he may have made would be, “I can see how the actions of the US in regards to Ruby Ridge and Waco led to McVeigh making the decisions to become a terrorist as he did.” I would agree, crazy people can be inspired by many things, but that does not make them reasonable.
To say that it is not entirely unreasonable says that it is reasonable, as that is how words work. If you say that it is a reasonable reaction, then you are justifying it. If you justify the actions of a terrorist, then yeah, people may react to that badly.