Your toxic partisanship blinds you to both reason and nuance. Shooting people of a particular faith to make a point IS an act of terrorism. 

Eschewing the term "barbaric cultural practices," which was favoured by the previous regime, is a conscious choice to avoid carelessly perpetuating the bigoted connotation that all Muslims either practice or support female genital mutilation (they don't by the way, in case that's news to you).

While I am no Trudeau supporter, he was indeed ahead of the curve in talking about "root causes," which are now being studied carefully to understand the process of radicalization.