You are very happy to accept the Rights mentioned in the Declaration of Independence, but you are hesitant to accept where those Rights come from. The facts concerning our Rights are not to be cherry-picked. You either believe what was written or you don't.The fact that we have individual rights is the fact. Who or what was the creator is conjecture, and irrelevant to accepting the plain fact before us (that we have individual rights)."...endowed by their Creator..."
By analogy: You're reading this off of a computer monitor. It's a specific type of monitor, connected to your computer by a cable with a specific configuration of pins, communicating via a specific protocol and only that protocol.
Now, in order to be able to use this monitor with your computer, here are some totally irrelevant questions you could ask: Did I purchase this monitor or did someone else? Was it purchased at retail, wholesale, in a big-box store or over the Internet, or was it stolen? Am I using this at home or at work? Was it made in the USA, Taiwan, China, or elsewhere? Are the chips inside TTL, CMOS, or something else? What color is the circuit board? Was a wholly rational design process used to design the circuitry, or were evolutionary algorithms involved?