Silent Hill was never a Resident Evil clone. It always had a unique identity. Resident Evil, except the original game, has the identity of a Hollywood Action movie. The developers of the game have stated that is what they wanted from the series starting with RE2. Silent Hill, on the other hand, is like a much slower Alfred Hitchcock Suspense film. Slower paced, methodical, and plays on the viewer’s imagination. Where Resident Evil might explicitly say something in the lore, Silent Hill is more likely to only imply it.

And then we get to Silent Hill 2 Remake which basically is just a copy of Resident Evil 4 Remake, sadly.