Private sector exploits workers, Public sector while democratically controlled by the workers will ensure well-being and self-sufficiency through workers self-management.
UBI will support working people, While those unable to work will depend on welfare. With high progressive taxation this will lead towards more equality between classes and hopefully to classless society, Where everything is automated. Automation is big concern towards our future and it should free us from work so we can invest into ourselves and our families: we can continue going to further our knowledge, Discover new things and hopefully go to space to live in post-scarcity society.