Never said that capitalists own it, but they had to change their way of life as it was failing. They moved away from their hardcore Communist ideology. Since they loved Stalin it's safe to say they were big C Communists.
After their economic downfall they had no choice but to restructure the economy. They had to include capitalist ideas such as extensive privatization, differential wage, private ownership of property. In other words, a complete 180 degree about face, opposite to what their original ideas were.
The proceeding paragraph is not only a summary of the downfall and consequent changes in the kibbutz, but also for what happened to communism as a whole, in the former and now non-existent soviet union. It imploded on its own for the very same reasons. And the people were forced to adopt a more capitalist model for the economy.
Also the page on
Kibbutz crisis which I used to dismantle your totally errant claims, it states that after the economic collapse they had to change their way of life, "transforming its socialist ideology characteristics to more capitalist characteristics."
That's where I drew the word capitalism. I make no claims without evidence to back them up. If you don't like the word capitalist maybe you should edit these pages so they conform to your personal view of things.