I think as beings born into samsara we are sometimes faced with a choice between the lesser of two evils. In such circumstances we should support each other to do the best we can and help each other deal with the effects of our choices.
The danger lies in mistakenly perceiving the lesser of two evils as actually a good.
I think if we can cultivate the thought of "I understand this action is unwholesome but at this point I do not see any other choice. Nevertheless I resolve to try to avoid getting into this sort of situation in the future." then I think we are keeping in the right direction.
side 1 - Abortion is always wrong because it is the taking of life
This is pretty much the Buddhist position. Instead of "wrong" I'd say "unwholesome" or "leads to future suffering" or "not a choice that is in line with the Buddha's path for ending suffering."
side 2 - for medical reasons one will die anyway and if no Abortion is done through volitionally not doing it then you are still killing, who has the right to life?
This is not in accord with Buddhist teachings. Abstaining from taking actions which would save a life does not in itself constitute intentional killing. That said, there are certainly cases where one might abstain from a action due to an unwholesome mental state, for example wishing that person to die. The most important thing, I think, is to develop clear awareness of one's mental state when making a decision.