First of all what do you mean by "creationists?" That can mean just those who believe that the account of the creation in Genesis has to be taken as it is. More broadly, it is the theological doctrine that the universe is a creation, not just something that "happened." Another part of this is the belief that the universe had a beginning and will have an end. Many thinkers from Aristotle onward, and taught that the universe always existed. Scientists who accept the latter belief might be called anti-creationists, and they can hold to this even though it seems to go against what we now know. Fred Hoyle believed this, I think. Others try the end around notion of multiple universes or consecutive universes, which is also in one form or another a way of accounting for the counter-intuitive aspects of quantum theory. The way that human beings are made indictaes that we can never be satisfied with agnosticism about untilmate things, which is why Eveolutionists and therologicnas each go beyond what they actually know at any given moment.
I mean those who describe themselves as "creationists". You can't be that obsessed with measuring everything else by contemporaneous cultural and societal dynamics, and then pretend you don't understand that context here and now.
Let's go with that, and ignore Creationist attempts to vague the term