You've done no such thing! The annulment process is the best we have and it relies on humans, as weak and as flawed as we are. However, in the very rare situations you describe, a Catholic would submit to the authority of the Church and bear their suffering in silent and faithful obedience, trusting God to right all wrongs when He meets them. That's the Way of the Cross.

You have failed to address the theological underpinnings of AL i.e that God can be calling people to live in objectively sinful situations, that avoiding "harm" justifies sin, and that personal conscience trumps the Magisterium.