YOU SAID:
“If man could be crossed with a cat, it would improve man but deteriorate the cat.”
INTO JAPANESE
「人間が猫と交配できれば、人間は改善するが、猫は悪化するだろう」
BACK INTO ENGLISH
"If humans can mate with cats, humans will improve, but cats will get worse."
INTO JAPANESE
「人間が猫と交尾できれば、人間は改善するだろうが、猫は悪化するだろう」
BACK INTO ENGLISH
"If humans can mate with cats, humans will improve, but cats will get worse."
That didn't even make that much sense in English.