"We want to give up religion, we want to give up nationalism, we want to give up capitalism..."
Sounds like what Gene Roddenberry envisioned, when he created "Star Trek": A utopian world united under one government - the United Federation of Planets (based in San Francisco), with no separate countries, nationalities, currencies - or religion. After all:
'We must question the story logic of having an all-knowing all-powerful God, who creates faulty Humans, and then blames them for his own mistakes.'
"the irony is that so-called 'progressives' are the ones that want to give up this progress. Go figure."
Gene's world sounds like the ultimate in progress (with, as shown in ST: TNG, DS9, VOY & ENT, Starfleet in the 29th Century having timeships, to enforce the Temporal Prime Directive, advancing further; boldly going where - and when - no-one has gone before. Now, Sambo83, care to explain what Christianity has done to advance the progress of humanity?: