The fundamental feature of progressivism is that it seeks change. There isn't a destination or goal, it is at root a rejection of status quo.
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They are lost and looking for a direction - one that doesn't involve personal responsibility, has no boundaries, etc., and it leaves them empty. There is really only one way but it requires personal responsibility, boundaries, faith in themselves, faith in what can be gained by leading a moral life, faith in the successful ways of life that have endured for millennia, and until they try it, they will remain lost. Sadly, they won't try it until they are desperate, dejected, and suffer failure after failure after failure - if they survive their foibles. Then, and only then, will they learn to forgive themselves.
It can all be found in the Bible.
For now, they drift in depravity as they attempt to "excuse" and "justify" their life styles. Pray for them but offer them no quarter. If they don't get a clue and figure it out on their own, they will never rejoin the human race. You can lead a horse to water, and all that ...
Woody