Meh. Iron sight break too. And at this point, optics and irons are at a similar place in terms of durability. Hell, even battery life isn't much of an issue anymore now that PA has made available a red dot with 50K on a single battery that is as affordable as most quality folding BUIS.
This is a valid point. Get good quality optics and you are less likely to need your irons. In the situations where your optics is completely opaque (lens smashed, muddy or otherwise unusable) you can use a QD mount.
To the OPs problem, I'm starting to lean more towards 1-6x or 1-4x optics where I can rapidly switch power from close-in to long range. I use illuminated but etched articles (dots, circle dots or ^ reticles).
If the battery dies I still have a black reticle. If the scope is trashed to where I can't see through it, I pop the QD and toss it, switching to traditional inline irons (I've had to simulate this; other than dead batteries, I've never had a scope actually fail on me yet and I'm hard on my equipment).
Again, everything has compromise. If there was a best solution to this for everyone, we wouldn't have the myriad of options out there. The 45 degree sights are quickly available, but I don't like a solution that won't let me shoot weak side around cover or barrier.