There are, in fact, no neat demarcations in the discussion of socialism. There are multiple definitions of the concept and numerous ways of actually conceptualizing it.
There's only one definition that'd complement Sanders' (and our) political ideology.
The following is an entry in the Oxford English Dictionary:
2. any of various systems of liberal social democracy which retain a commitment to social justice and social reform, or feature some degree of state intervention in the running of the economy.
✍ Note: Referencing the etymological roots of the word 'socialism'. The Italian 'socialismo' meant, 1785 in sense, 'belief in the social contract'.
We've had a strong New Social Contract in America.
The belief that if you:
❝Work hard and you’ll make a living. Invest in yourself and take entrepreneurial risk, and you have a shot at historically epic prosperity.❞
We must again re-strengthen America's New Social Contract.
What we describe as 'socialistic', is something that is irrefutably American.
A promise to all Americans that investment in research & development will facilitate innovation and entrepreneurship. Reliably safe roads and robust well-designed infrastructure will be there to ensure the deliveries of products and services. Public schools and universities will ensure that you have access to high-quality education, high-quality workers to hire, and cutting edge science to commercialize. And if you fail, there will be a net to catch you. Pay taxes and the government will make sure the New Social Contract is fulfilled and will step in where the market fails.