This is absolutely not true. In absolute numbers, the cost of starting a business is quite low, and workers have a lot of money, much more than their employers. And if workers collectively stop spending their salaries on unnecessary things, and instead organize a fund - on average, in 2 years they will have enough money to buy out the entire company they work for, or organize a comparable one.
There are no problems with capitalism, capitalism just allows you not to do all of this, not to suffer 2 years of poverty for the sake of living in a mud hut (if you're lucky enough).
And no, you didn’t have to live in a mud hut for it. In fact, it was more affordable for the regular worker to build a house than it is now. Those houses were/are comparable to what you see in Germany today. Go check out the real estate market in Slovenia if you don’t believe me, look for houses built 1950-1990.