Let's play the "kind" game

So recently there was a discussion about kinds and this definition was given:

Kind means “A type, race or category; a group of entities that have common characteristics such that they may be grouped together.”

So why don't we follow this definition and group some very closely related organisms together

Whales are fish because they swim in the ocean like fish and are also closely related to sea snails, sea cucumbers, and squid. If we look at the Orca, the skin is black and white, so we can put it in the same kind as the zebra and the panda.

On the other hand, sharks aren't fish because they are cartilaginous rather than bony fish and are therefore in the same kind as squid.

Bats have wings like birds but aren't in the same kind as ostriches because they don't fly. Instead they're more related to flying insects. They can also echolocate so presumably are related to dolphins, whales, and the hammerhead shark.

Solitary bees aren't actually bees because they don't like in eusocial hives :(

So this is a bit of an absurd reduction but I hope the point is clear: superficial features aren't good indicators of how closely things are related. This is why we used to group organisms together than we now know are very divergent, foxes and cats, pandas and red pandas. So we can see that "kind" is too poorly defined to take seriously