The author lays most of this at the feet of capitalism, and I agree that the system has excesses that have contributed to the atomization of society, which can cause people to slip through the cracks, but...has any other system been obviously _better_ at supporting those with disabilities? Did feudalism or communism do this better? (I think about the "worst system, except for all the other systems" quote often)
Democratic socialism. The US has quite a few such experiments like the New Deal. And they've been quite a bit better than the grinding, unbridled industrialism that consumed and spat out young and old alike.
"Capatalism" means something different in the USA than it does in say France. In the USA, any attempt to keep check of or reign in capatalism is seen as socialism, and governemnt overreach. In France it's seen as common sense, though they would still say they practice "capatalism". Similarly, taking care of people that can't take care of themselves is obvious in France, but seen as nearing socialism in the USA.
It's important to note, because when people go for things like "democratic socialism", they may not be against what they think they're against.