But we're not talking about children. We're talking about fetuses.<quoted text>
I agree with everything you said but the question was to you not everyone else.
"I would say that having children is a benefit"
Most at least 98% of mothers I know would say this.
The potential benefit of a child doesn't make the fetus not a parasite.
People used to swallow tapeworm eggs to lose weight. They perceived a benefit. But the tapeworm remained a parasite.
These resources refer to organisms that have both parasitic and free living stages, like the creature in the Alien series:
http://books.google.com.mx/ books?id=1yBMvatXY1oC&pg=P A388&lpg=PA388&dq=para sitic+and+free+living+stages &source=bl&ots=-CgytDV 0VT&sig=Y_MnBoIVIbfIFVwsVO gIDquMigE&hl=en&sa=X &ei=wyblUO7fHOSu2gWSr4GoBA &sqi=2&redir_esc=y#v=o nepage&q=parasitic%20and%2 0free%20living%20stages&f= false
The human being is the same. It's earliest form parasitizes its host, the mother. So what? Why so much resistance to the use of this word? Because it is insulting or demeaning to a fetus?