Idolizing a document over human rights is terrible.

Well, to be clear, human rights, other than being a vague philosophical concept, are also a document. Much younger, and much more sensible and uncompromising, but still also a document.

Hopefully if new rights are deemed to be needed, they can be added.

Well you benefit from that very same document right here (free speech). The first thing tyrants do is get rid of things like constitutions.