Earlier quoted context omitted.
Cloth masks are estimated to be in the 50-60% effectiveness range. To me, that's quite effective, not ineffective. Especially when applied across an entire population.
I think you're off by an order of magnitude (5-6%) if you're referring to the risk of infection vs not wearing a basic, correctly worn surgical mask. And this is pre-omicron; omicron is far more transmissible. Happy to be corrected.
That said, cloth masks were always recommended for gen pop given the low availability of N95 surgical masks. They're still better than nothing, and we're still learning more about this disease so it's subject to change even further as more observations are made.