Unemployment is 'involuntary' when the price is above its market clearing level. Workers are unemployed because jobs are not available at the prevailing wages, period. The only recourse is to either expand the number of jobs or somehow lower the wage.
When you affect consumption, production falls, and when production falls, employment falls and when unemployment rises, it affects poverty.
Long-term unemployment is particularly costly to those directly affected, of course. But in addition, because of its negative effects on workers' skills and attachment to the labor force, long-term unemployment may ultimately reduce the productive capacity of our economy.
Nevada was hit hardest by the recession - highest unemployment, highest foreclosure rate, highest bankruptcy rate.