Angst will continue dominate the thinking of ex-JWs until they give up utopian fantasies. Perfection does not exist and it never will.
Humans are prone to utopian fantasies. Awake used to be called the golden age. The golden age was a belief in medieval times that there was a time in the distant past when the world was a much better place, with peace and prosperity. The Rennaisance era fed into that fantasy with the excavation of many beautiful temples and statues from the classical period. The Greeks were always fighting one another, see The Peloponnesian War (431–404 BC). Then they would cart off slaves to cut the stone to build their beautiful temples!
There is a great deal more that must be done to create a better world and further progress is not inevitable.
Yes I'm always beating this drum. So many fantastic organizations need our support to prevent torture, help people in war zones, protect the environment, inoculate the world's children against horrific diseases, save endangered species, etc. It's so easy to throw up our hands in despair and give up. That just means someone else has to do it.