Is it OK to refuse to cite paywalled papers? I wonder how reviewers would react if authors of a submitted paper refuse to cite paywalled papers. Is it a valid reason to refuse citing some papers?

I am mostly interested in the field of computer science, and English-speaking venues.
If I was reviewing a paper, and the authors failed to cite important literature, I'd recommend rejection until the authors provided correct citations.  It's the authors' responsibility to provide appropriate references.

I assume that many other reviewers would feel the same.