That really depends on what's your personal definition of "keeping everything locked down".
European countries like Spain and Italy showed that lockdowns work quite well in quickly halving infection rates with negligible externalities, but their lockdown focused on non-essential work and everyone was allowed to do basic provisioning things such as going to the supermarket.
Also, if I recall correctly Spain also had in place a kind of stimulus program where people could apply for a guaranteed minimum income scheme.
It boggles the mind how some people conflate a quarantine with solitary confinement under house arrest where people are left to starve to death.