You are back peddling what you orginally said. There is no suffering we know of, there is nothing post hatch problems you speak of in 2 posts. It's a failure to thrive. There's no chance of these failure to thrive animals to effect later generations like all of the animals you list above. We can't use them to do what you imply as they fail to thrive. There is no economic gain as I show in the post above. If you find something ethically wrong with that, thats fine. Your problem however seems to be far more focused on the spider gene itself rather than the super spider that cannot do any of which you want to imply.
I do see how there is a ethics debate, with spiders and super spiders, I've had that debate with myself. But If you want to have a discussion with substance let's at least stick to things that are true.