science don't need evolutionism at all to function, and made great strides when most scientists were bible believers

It does. You can;t keep science going when you selectively ignore the evidence. It made progress when people were "bible believers"* because at that stage there was no conflict with the evidence. That evolved later.

* Note the Taliban awfulness here. Thousands of evolutionary scientists are Christians. They are "Bible believers" just as much as Pete is, but are fully engaged with the demonstrated evolutionary history of life, and its prebiotic origins. But certain greedy persuasions grab the whole bloody book, and it's interpretation, as their own exclusive property.