So here's an honest list of the number of entities I've killed in Minecraft in legit survival since I started playing in 2014, and it ends today as I postpone my Minecraft adventure. The list contains kills both intentionally and accidentally:
Chickens - 18047
Pigs - 4586
Cows - 7410
Donkey - 36
Mule - 0
Ocelots - 36
Cats - 183
Bats - 8
Ilamas - 1,106
Cod - 89
Rabbit - 467
Parrots - 38
Squid - 76
Skeleton Horse - 34
Salmon - 204
Pufferfish - 5
Tropical Fish - 2
Wolves - 12
Foxes - 3
Dolphins - 7
Horses - 47
Mooshrooms - 37
Striders - 2
Villagers - 452
Iron Golems - 176
Turtles - 0
Zombies - 474306
Skeletons - 30848
Spiders - 12896
Creepers - 8799
Endermen - 2847
Witches - 286
Slimes - 783
Silverfishes - 346
Husks - 7623
Endermites - 29
Guardians - 230
Elder Guardians - 16
Strays - 830
Shulkers - 37
Cave Spider - 84
Polar Bears - 47
Drowned - 1986
Zombified Piglins - 7645
Blazes - 883
Magma Cubes - 3863
Wither Skeletons - 743
Phantoms - 667
Ghasts - 1264
Vindicators - 256
Evokers - 64
Vexes - 28
Pillagers - 386
Ravagers - 46
Wandering Traders - 553
Pandas - 4
Bees - 14
Piglins - 267
Hoglins - 72
Zoglins - 3
The Ender Dragon - 11
The Wither - 3
Players - 44