These unemployed will clearly understand that they have nothing to lose therefore will fight to death. Also large part of police forces in many countries no doubt will support rioters.
I missed this earlier. This is not true, because police forces, as well as private security forces, do not work for free, and will support whoever is paying their paychecks. In that scenario, it will be the people with the wealth, not the rioters who are rioting due to lack of it.