Bruh. This is just incorrect. I am fat and asthmatic and commuted by bicycle all during college in Athens, GA and and by e-bike for about a year in Atlanta, GA. Cycling, especially e-bikes, is extremely accessible even for quite unfit populations. With my e-bike, rack, and paniers, I can do weekly shopping trips no problem as well.
Besides that, it gets cars off the road meaning that the disabled/unhealthy population you care so much about will have higher priority access to car infrastructure.
Thank you for sharing this. I just wanted to add that cycling helps improve fitness, and unfit populations could become fitter if they chose to cycle. This brings about multiple benefits and is not the case with other transport modalities (car, bus).
Besides that, it gets cars off the road meaning that the disabled/unhealthy population you care so much about will have higher priority access to car infrastructure.