Earlier quoted context omitted.
It's not about dismantling walmart. At least from the 'socialist' point of view, its redistributing capital that is just sitting idle. For example, take away the majority of zucks and bezos stock, and just give it away evenly to the people. That's not dismantling the company, its just a redistribution of wealth that has been earned off the backs of middle class.
The middle class signed up for the trades offered by zuck/bezos. Why are they owed?
They're not owed in a fully capitalist system, but I can see some merit for the idea that inequality has gotten so bad that there needs to be external intervention to fix that, and redistribute the wealth that is currently concentrated in the top 1%. Giving normal people that money would be a good thing for the economy, and I can see some benefit to it.
Now of course in practice it wouldn't be legal and getting that money from them would be near impossible, but its interesting in theory.