I already explained elsewhere that it isn’t a binary, what’s important is which is the principle aspect, public or private ownership. There are elements of private property in socialism, and elements of public in capitalism.

Cooperatives do not eliminate the need for eventual full public ownership. Cooperatives are still based on competition and profit, not fulfilling needs. As cooperatives grow and develop, they will form monopolies, long past when coherent planning and public ownership becomes more efficient at fuflilling needs and growth.

Further, we as the workers cannot restructure capitalism. Capitalism is dominated by capital. In order for workers to have genuine power over the system, we need control of the state, large firms, and key industries, without ownership we cannot pivot to a cooperative society to begin with. Political economic systems are not thoughts in your head, recipes to be picked out, but real, material things, and as such what comes next will be what our current system is economically compelled towards. As centralization is a key side-effect of capitalism, common, collective ownership and planning is what will come next, after revolution sped up by capitalism’s own drive for disparity.

Ultimately, you have a very idealist, utopian view, and not a materialist, scientific view. That’s why you’re running into opposition so heavily.