People spending less is going to mean less money spent on services and goods. So companies make less money.
People ask for higher wage increases. Companies either don't have money to pay them (as people are spending less) or they increase costs of their goods so goods cost more.
Public sector workers ask for wage increases. Government and Councils increase taxes to pay for them.
Index linked benefits and pensions increase by inflation so Government needs to increase taxes / make cuts to pay for these increased costs.
AIBU to think this all a bit depressing?