> from the half-full glass POV we are just speeding up the natural selection of bacteria resistant humans (it has been going for millenia and got, probably only temporary, delayed for the last 80 years). Also, as a side effect, it can help solve (at least temporarily) the overpopulation issue until the much more smart (wrt. health and Earth resources usage) humans evolve. Basic dialectics at work.

Bacteria evolves resistance at about the same rate as people develop defenses.

So yeah, if you don't mind killing off a huge segment of the population and having women die in childbirth regularly.