@hawkeye10,
The problem with your arguments are that they are de facto saying that terrorism is justifiable and appropriate due to the “moral decline” or “failed political systems” of the targets.
In my world, terrorism is an abomination, whose means are never justified...ever.
Revolution ? Sure. Go ahead and try, if you think your cause is strong enough, but leave the innocent out of it.
This nut job was essentially driven to slaughter nearly 100 innocent people because the white male is rapidly losing his grip as the dominant force in the world, and there ain't a thing you, he, or anyone can do to stop it.