I think I put this in the wrong place, so I'll put it down here.
"Zombies are technically living depending on the type but don't feel pain.
Sperm can move and have a purpose, that makes them alive to me."
You'd have to define life in order to say Zombies are or are not living, just like sperm cells. Sure a zombie can move around and bite people, but it has no thought process or working organs, so it all boils down to how general or specific your definition of life really is.
Your definition of what is or is not living right now is something that can move and have a purpose, which can only be validated if you accept robots, washing machines, cars, footballs, mobile homes, doors, chairs, bicycles, water, planets, air conditioners (like the washing machines, they vibrate which is a form of movement) and shoes to be living, just to name a few things. You can use that definition if you want, but it's obviously flawed.
I'm going to go ahead and stick with the biologically accepted requirements of what can or cannot be considered living: 1.) Complex Organization (more than one cell) 2.) Posessing metabolism 3.) Response to stimuli 4.) Growth over time 5.) Reproduction 6.) Adaptation/Evolution over time and 7.) Ecology (Able to alter or be altered by the environment).
So, because your definition is invalid, we must accept the scientifically accepted definition, which does not allow sperm cells to be considered living things.