Claim: the real issue in this shooting is [mental health | white supremacy | misogyny | bullying | economic anxiety | police brutality | domestic violence | etc. ]. We must address it first so these tragedies don’t occur.
A distraction/derailing tactic. The existence of (or speculation about) a contributing factor does not change the fact that the number of casualties in an incident are higher than they’d otherwise be because of the relatively easy availability of access to firearms in the U.S. Also, we’re capable as a nation of addressing more than one problem at the same time if we have the will to do so.