Where are you more likely get a burglar enter your home? Windows ... Where are you more likely to develop cracks in your walls? Windows ... Where are you more likely to develop leaks? Windows (especially roof windows!)...

Sorry but horrible comparison ;)

If you need to rely on unsafe in a memory-safe language for performance reasons, then there is a issue with the language compiler at that point, that needs to be fixed. Simple as that.

The whole memory-safety is the bread and butter of the language, the moment you start to bypass it for faster memory operations, you can start doing the same in any other language. I mean, your literally bypassing the main selling point of the language. \_00_/