Regarding No.2:
Idols should not be auto pickup at all, these are items with hundreds of different combinations and roll ranges. You will reach a point where you don#t blindly pick up idols, once you understood, which are good and which are bad.
Regarding craftign materials there are countless discussions about crafting materials and the devs have a pretty hards tance on this.
The devs are currently not interested in implementing auto pick up for these.
However there are plans for some changes, that these will drop less frequently, but in bigger chunks.
And here are a couple more discussions regardign the same topic:
There are even more threads from even logner ago.
I think its fine if you really want this to give feedback, but I also think its essential to explain in detail, why you want this, in case you have a new insight into this.
Across all of these countless discussions there have been very few arguments why we should have auto pick up and most of the were not sufficient for the devs to implement it.