Because Americans have armed up the last few years.
It’s not so much as having the “means” to defend yourself as it is having the “will” to defend yourself.
People living in the more rural areas generally speaking not only have the means but the will to defend themselves because there is no one else to do it.
In the cities people lean more left wing and depend on the govt to defend them.
Most don’t have the means to defend themselves and if they do have the means they probably don’t have the will because they are afraid of legal problems for themselves.
Their response will be to simply flee the cities until it’s safe to return.
When the productive members of society flee the cities and their jobs the economy will tank.
IMO, this is a coordinated attack against the economy.