you and I are not equal when we were created felg, the sperm and egg that made me aint the same as those that made you. we havent even been completely assembled as humans, and we are already not equal - certain limits, potential, genetic diseases and future ailments are already being set at our creation.
just the same, their value also differs based on their value to the parents - some create babies that have no value or of a negative value to them - hence they discard them. while to some theyre the most important thing in the world. = the value differs, this objective thing you are saying. the baby of a couple in the middle of nowhere land is not as valuable as the child of a royal family who is meant to be the only heir to the throne for a country for example - he's important to the citizens of the country as well.
can you think of something/anything specific that is equal if it does exist?
'Equal' doesn't mean 'similar'. All humans are born with the same rights (allthough some have their rights repressed by their government), thus they are equal. The head of a government is only important because he's elected, and it's his/her position that's of higher value than other positions, not the human itself that's worth more than other humans.
A baby that's discarded has no subjective value to it's parents, but it has the same objective value as a prince or a princess, provided that it's capable of rational thinking.