What do you think makes a parent?

So I'm talking about the people that 1) want nothing to do with the baby they helped make, 2) don't love their children / wish they never came into this world 3) idk I can't think of other examples.
To me being a parent means you provide for your child, do everything you can to make that child happy & healthy. I don't think that just because you contributed biologically that makes you a father/mother. I think how you raise a child makes you a father/mother. Like think of all the step dads that stepped up when they didn't have too. They're a father to me.