Everything socialists mutualists, and other collectivists want to do is legal to do now, except take property from people, at gunpoint. You can form employee owned companies, co-ops. They exist already. You can form intentional communities where everyone shares their income with each other in that community and the community itself is owned as a co-op is, by everyone in it. If someone gets sick, the members of the community could be bound to care for them.
There is nothing stopping you from enacting it now. There is no state statute calling it illegal. Nobody would stop you.
The problem is, collectivists usually don't want to create their collective organizations and property themselves. They usually want to do the one thing I did say was outlawed. They want to take other people's property, at gunpoint, for their own use, as a collective."
So go ahead and do it. The only difference is, you have to invest your own and your member's money and labor in it, not take it from someone else or get them to give it to you.
Form a small company from scratch and grow it, over time, providing products and services. You can have only your employees invest or get other small investors to help out. You could even go big: Form an investment trust, a mutual fund, or other type of co-operative investment vehicle.
Mutual funds are pretty powerful. A mutual fund can get a lot of voting power in one company. You don't like how an evil company is operating? Have your mutual find buy into it and take over control of it. Usually mutual funds don't try to start a new company though.
In real estate, you can invest in real estate investment trusts that do something similar, except, to avoid taxes, the trust must issue most of its earnings in dividends. .....but people can choose to have their dividends reinvested in the trust and keep the money in the collective. Now you and your little collective can buy a bunch of real estate and be landlords together. Each one owning a small share. Think being a landlord is evil? Buy farms and have trust fund owners work them. Maybe instead of a trust, you could form an investment co-op or, shudder, corporation.
The corporation itself is a collectivist organization. It's owned often by thousands or even millions of people who invested a tiny amount of money into it and each has a tiny say on how the company is run. Most of those shares are owned through another layer of collectivizing, the mutual funds I talked about above.
We already live in a situation where the people collectively own the most powerful companies. Typically it's Grandma who owns the most, as the value of her shares grew over the 10 years since grandpa, who bought them, died. So when everyone talks about how the corporation should pay for this or that thing they think the corporation should pay for, it's really Grandma they are saying should pay.....the corporation is your Grandma.
So, why do socialists always want to steal from their grandma instead of creating their utopia through voluntary means?