I don't couple that with young males having little prospects because they still have more than their counterparts. Why aren't young black women shooting up Walmarts? Why not Mexican men? I'm a white male. I didn't graduate from a college. I was awkward. I haven't killed anyone and I know a lot of others that fit that mold. You're ignoring the poison being put into their heads by people using your exact talking points. That creates the powder keg.
Bombs don't get you the praise from the gutter. The alt-right incels like the glory. You're right, we could see a rise in bombings but we also might not. What we'll definitely see (and already do) is nothing changing by doing nothing.