Will non-selling items in an Amazon store bring down the entire store’s ranking?

I’m in print-on-demand so I don’t keep a physical inventory. It costs me nothing to keep a product on sale indefinitely, even if it garners no or few sales. I’ve got a private brand and, although there are plenty of nearly identical products for sale from many other private-brand sellers, I own all my buy-boxes.

I have 2000+ parent skus and another 4000ish variations on the parent skus. Of those, 3/4 do not or rarely sell.

Does anyone have any thoughts on whether these non-sellers drag down my store’s ranking in general? There may be no definitive answer known to anyone other than Amazon, but I’m putting it out there anyway.

For purposes of discussion, please let’s leave out reasons why the non- and poor-selling SKUs are not moving.

Thank you!