“In addition to this is their propensity towards putting God in a proverbial box and then making that box a condition of their faith.”
It seems to me that you are just projecting here. I’ve never heard any creationists talk about putting conditions on their faith, so you are just inventing reasons to justify your animosity for them.
“I often ask the question: “If evolution and the Big Bang became proven facts”
Science doesn’t deal in “proven facts”, so your question is senseless.
>>> Science doesn’t deal in “proven facts” <<<
Um, nope.
Theories are built upon proven or accepted facts.