Learn English – Should “Creationism” or “creationism” be used in a scientific writing

I'm editing a scientific article, and the word "creationism" is used a few times—lowercase and uppercase spellings are both utilized. I have no clue whether to use the lowercase or uppercase spellings consistently.

Here are the instances where the word is used:

The ongoing debate of evolution versus creationism is not a new issue.

Evolution’s beliefs follow a scientific line of thought and do not classify as religious beliefs, unlike a notion such as Creationism.

This debate created many sparks, with some scientists condemning Nye for agreeing to such a debate. They state that it gives Creationism an air of credibility that it does not deserve.

Nevertheless, wherever the debate might turn next, the general consensus is evolution is based on science and Creationism is based on faith—both equally indispensable components of today’s society.

Any input would be highly appreciated.