People often mistake "the same" for "equal'. They also often miss the part about "CREATED" (and I'm not referring the whole "Creationism" this; I mean the zero-to-born thing, with emphasis on the "born". And, since "equal" doesn't mean "the same", that goes to the thing that there are babies born with health/medical issues of varying types that will mean one or another child will have something that would separate him from the group of "most other people" who would be considered perfectly healthy and without serious limitations on potential to live a normal life. BUT, "equal" doesn't mean "without 'issues'" either.
So, with all that said, yes... every single human being comes into the world equal in terms of "worth" and potential. Of course a new baby can't offer much to the world beyond his own family for a good number of years, but "worth" or "potential" are not about money or power or any of the other "baloney" that people far too often use when assigning "worth" and "equality" to others (and that includes their own children sometimes, while much of the time people will assign and dole out "worth" based on all kinds of things at different times and in different situations.
Too many people can't, or won't, sort out all the different things that eventually amount to "inequality", depending on who values what or who decides that whom is not equal. Too many people also only think of "men" (or human beings) as what they eventually become once they're long past being newborns and, to one extent or another, have moved out beyond that world that starts out as pretty much a tiny and narrow world of the newborn and his mother (and to some extent in some cases, his father).
Historically and in some cultures there have always been, and are even today, those who believe that one brings into the world "unequal genes" that give some people an edge of others. Better informed people now know better.
The concept of being born/"created" equal seems like one that isn't that hard to understand, and discussing it as if it's debatable seems like a discussion more appropriate for grade-school children. It shouldn't be a subject that grown-ups stew about or debate - not in a country founded upon that very simple and easy-to-understand concept, anyway. As far as I know, nobody ever said that everyone would end up "the same" - only that every human baby starts out of equal "value" and potential. It's not a matter of what I believe. It's what is.