A simple way to debunk your claims is to simply look at real life examples that show it actually exists, and hope the goalposts will not move ala “but it wasn’t large scale so it doesn’t count”

1 - SCOP is a type of company in France where employees are owners of the company. This is not yet socialism although it shares the philosophy/ideals. There is no hierarchy in a SCOP. Duralex, french makers of glassware just recently changed their structure to become a worker owned SCOP. Motion Twin, the company behind the game Dead Cells has been a SCOP for years. See https://en.wikipedia.org/wiki/Worker_cooperative

2 - In the capitalist world it is indeed hard to emancipate from the interconnection with everyone and everything, which is why revolutionaries’ main goal is to destroy capitalism. You can’t envision a different type of organisation for society because capitalism has become so prevalent it tries to impose itself as the only solution. Look for smaller scale examples of autonomous, self sufficient communities, I’m not talking about uncontacted native tribes, there are, all over the world, tons of examples of small communities trying to rethink how we can restructure society away from the capital. Extrapolate from these examples and you’ll have a glimpse of how this could work at a larger scale.