I cannot get Facebook to sync with my phone contacts
That has been going on since before the S7 came out. There was a spat over what information is shared so either Google or Facebook severed the connection.
So your telling me that this is an unreconcilible issue
[Personal information removed as required by the Verizon Wireless Terms of Service]
As far as anyone knows, yes.
Facebook removed the option last year sometime. Older devices once the contacts were already downloaded it stayed when the change happened.