I'll keep it simple, because I don't want to get into philosophy, and discussions of positive vs. negative rights:

Whenever you claim a "right" to something that has to be produced or created by other human beings, you are advocating slavery. Example: When I have a "right" to a house, I get one regardless of whether or not I plan to pay for it. Otherwise, I'm just buying a house, and why stick that in the Constitution?

Which means someone has to either build me a house without pay whether he wants to or not, or I have to force someone else to pay for it. Either way, I'm taking a chunk of someone else's life without their consent.

Same goes for food, education, health care, jobs and anything else that someone has to make or do for you.

The "rights" in the Constitution do not list ways in which we take things from others. They are a list of ways in which the State is not allowed to oppress the citizen. The Constitution is a document intended to show the very few things that a citizen cannot do, and the very few things the State is allowed to do. This has, of course, been lost in the past hundred years, but there it is.

Marxism is based on the theory that you can enslave an entire population and eventually make them like it. This has not worked well to date.