I'm not concerned about the cause of rage...
To be honest I don't know of any use of a vehicle to deliberately kill people over that wasn't a terrorist act. We don't have angry disaffected loners using cars and knives to commit mass murder.
You are terribly misinformed then.
You also fail to understand the source of 'terrorism'. What do you think makes a 'terrorist' other than being an angry isolated disaffected loner? (which every country has plenty of) There are many reasons for this disaffection - poverty, lack of opportunity, lack of family/camaraderie, sexual frustration, religious oppression, SO dumping you, the need to blame one's sorrows on someone/something else, etc. Everyone is subject to these things, but many do not know how to cope with them.
There is no attraction to 'terrorism' per se. There is always
a reason why they end up there. The guy who stabs his ex is no less a 'terrorist' than a kid in a suicide vest.
That people are not concerned about the cause of growing rage in the world is part of the problem.