In this country (in every Western country), contractees have the right to establish what law will apply to their contract. If you strip that right from contract law, you make it incredibly difficult, to the point of impossible, to do business with foreign companies.
People who rail against this are great examples of the axiom, "a little knowledge can be a dangerous thing".
>>>People who rail against this are great examples of the axiom, “a little knowledge can be a dangerous thing”.<<<
You are proof too. Little knowledge that acknowledging sharia/Islamic law is the camel’s nose under the proverbial tent.
One can negotiate a contract under whatever underlying philospohy you want. The only law that applies are those of the United State of America, and the state in which the contract is made.