If people on minimum wage can not make ends meet any way then why have the job? It's being subsidised by the government already via food stamps and other welfar

If people on minimum wage can not make ends meet any way then why have the job? It's being subsidised by the government already via food stamps and other welfare so why not cut out the middle man? Additionally if the unemployment is 4% then raising it slightly isn't a problem. 0% unemployment is bad for an economy and the US has safely hovered between 4-6% which is needed to let businesses be able to hire when more workers are needed