Look up
gastrulation. It's a scientific concept.
This is a baby at 6 weeks. If you think that looks like a lizard, I don't know what to tell you.
(Not to mention "it doesn't look human" is a pretty heartless argument regardless; do you think the same about victims of acid attacks or people with deformities?)
As far as "no chance to survive separated from its host" goes, we all die if our basic needs aren't met. If I tossed you naked into the Arctic Ocean, you'd die pretty quickly too. It seems cruel and arbitrary to hold an unborn child's mortality against it just because it isn't as resilient as an adult is.
What the argument boils down to is "If you take away the things something needs to survive, it dies." And an unborn child certainly isn't unique in that regard.