Cats as a species existed before humans, sure. But, (and I find this embarrassing to have to point out to you): wild cats are not the same as pets. How ridiculous to suggest domesticated pet cats could possibly have existed before humans decided to domesticate them.
"Did you know?The domestic cat originated from the African wildcat subspecies, Felis sylvestris lybica, around 10,000 years ago, and subsequently spread with humans throughout the world. It can hybridise with the wildcat, causing loss of genetic diversity." (quotation from the Wildlife Trust website.)
No one is feeding wild cats fancy food made by humans from the carcasses of less fortunate animals bred by humans for this purpose, letting them shit in the neighbours gardens and encouraging them to sleep on the furniture as far as I know, though I am clearly embarrassingly uneducated on the subject. Eager to be proved wrong here.
"Domestic cats (Felis catus) are predators that humans have introduced globally, and that have been listed among the 100 worst non-native invasive species in the world. Free-ranging cats on islands have caused or contributed to 33 (14%) of the modern bird, mammal and reptile extinctions recorded by the International Union for Conservation of Nature (IUCN) Red List4." (quotation from nature.com website)
And these are cats who are also being fed minced-up badly-treated large mammals whose rearing contributes to the further destruction of natural habitat. BY HUMANS