I'm going to say I don't care to my one year old
Why does your one year old need to know that?
I'm trying to establish mutual understanding with him
Even though it's normal to tease your baby when they don't understand, it shouldn't become a habit to the point you're used to it. It can evolve into emotional and verbal abuse if you keep taking it too far, and once they understand it will scar them for life.
I'm only trying to give him a hard life early on. He needs to know that people won't care about him.
That is such a harsh thing to say and very wrong. People will care about your son. You should be more caring to start off with.