That is literally my point! The workers are the ones who work hard to build everything, yet the bourgeois boss takes all the ownership and profit. Collective ownership ensures that the people who actually build it get to keep it.
You already share massive assets with strangers through public roads, libraries, and parks without a second thought. "Ancom" isn't about giving your personal items to a stranger; it's about collective ownership of the means of production so everyone has access to food, housing, and healthcare by default and self-gouverning communes, not a country!