"There is nothing sacred or of significant transcendent value in a human fetus worth protecting." (ergo, abortion on demand)
What is the basis of such a belief or notion?
Since "sacred" and "value" are subjective terms, it means that the person making this statment does not value a human fetus (at least to the extent he's willing to protect it). It's more of a lack of a basis for having such a value.
At least that's the best literal deconstruction I can give. However, since it comes from a liberal I'm sure it's really just some kind of doubletalk for "give me your wallet."