I don't see Kibutz as socialist or communist even if some ideas are similar. As I wrote the scale is very different. Kibutz is communal, like a large family. You can't have transactional relationships with family members. Also, you are not forced to be a part of it, you can leave any time. So if I compare it to a communist farm like Kolhoz where the former serfs still were enslaved by the government. So there is a certain difference in the personality of someone who lived and worked in Kolhoz (alienation) and Kibutz (open and not competitive/selfish). I'm saying this as someone who had family members in Kolhoz and knew a lot of Kibutz-born people and also worked in Kibutz(which was privatized).

Of course, I'm also generalizing a lot.