Fred is dead. Huckster was a fiasco during his THREE terms (11 years) as Governor. If you love open borders (slave labor for Tyson Foods and berating concerned citizens in church for opposing the invasion), are pro-criminal (pardon me Mike !), and generally approved of his crony-style hackery that destroyed the AR GOP on his watch, you’ll love Huckster. Do some research, Mac.
Likewise I don't see his previous support for immigration (or open borders as you characterize it) as something that matters in his role as Trump's sidekick.
What matters is the balance and gravitas he brings to the ticket and to Trump's effervescent personality. He's a steady experienced hand with political chops and a history of winning....ymmv