GP didn't say the ID was the mar of the beast, only that it was related to it. Having grown up in an evangelical household, I very much disagree that what he's said is a parody of what evangelicals believe. He is spot on.
Yes, frequently. It's not uncommon at all where I was raised (US South). We can talk to my father, or almost any member of his congregation, about how a national ID is a government plot to identify, control and harm the faithful.
Yes. They (my parents) believed any sort of centralized federal ID was a "slippery slope," though they weren't educated enough to know and use that exact phrase, towards an implanted chip, barcode tattoo, or whatever form they were convinced it would take.
really? still, to this day? one would think that evangelical Christians would skew conservative, and therefore be in favor of state/federal ID, for election security purposes.
These people are extremely conservative - well past treating "election security" as a primary concern and far closer to "welcoming the return of Jesus / the rapture" as their single motivating force. They'll of course support most other conservative causes, but only so far as they don't conflict with salvation.