Survive, yes. The point is you're talking about something that is already an organism. We do not know if the cell that is unable to implant is an organism. Maybe if/when we can go in, remove the cell, fix what's wrong, then replace it so it can implant, fine. However, considering over 50% of fertilized cells spontaneously abort it's reasonable to conclude they are not human beings.
An organism has to meet certain criteria first. That's the scientific requirement. Once it has met those requirements then there's certainly no problem helping it. It's a different story to say we can/should help a fertilized cell to become an organism. I suppose, at some later date, we may have the ability but we don't at this time nor know if it's possible.
Ahhh. It's nice to see someone thinking this through. There are myriad questions that arise if a fertilized cell or zygote is classified as a human being. I occasionally pose a few but the anti-abortionists never respond.
The first question is when can we say, with certainty, something is an organism. How can we prove a fertilized cell/zygote has the necessary ability or viability to carry on the processes of life? We do know that over 50% don't.