Settings and activity

I would agree with this request in partial. Disabling locked layers is convenient for common selection tasks. Most often then not you would click off the selected object to deselect them, but in this instance it simply selects the locked background layer. That being said, it's also a convenient feature if you want to align an object to a locked layer.

It might be better to create a secondary option to select locked layers as it is a less common behaviour. For example you could option click a locked layer to select it if you wanted to unlock or align an object to it.