I think the rights of the host trump the rights of the parasite.
So you think it's a right to murder someone? Oh, I'm sorry. Abort an unwanted fetus?
You forget, that the moment an unwilling Fetus will be killed, it becomes a PUBLIC issue. There is nothing private about it.
Suicide, on the other hand, is a different matter. I have no problem if a Terminal or non Terminal person wants to kill himself.
But how is it that we can decide to kill or not kill those who have no say in the matter?
Your logic is flawed and contradictory. Even me being in an incredibly drunk state can pick it out from a mile away.