While the authors position is rather far from grounded and misses the key issue, which in my estimate is that "Radical Anti-Capitalists" went wrong with alienating productive members of software society in favour of pandering to fringe and populist politics unrelated to those fundamental and crucial in pursuit of ensuring freedom and digital rights.

Free software is indeed about freedom in consumer software. You're strongly suggesting that it is otherwise without providing any clarity or context. What gives?