I hate to be the bearer of bad news, but where do you think all the leather you use for crafting comes from?
If you are so committed to preserving animal life in Thedas, you should also avoid crafting any armor or weapons that use leather. Or avoid any premade weapon or armor that by their schematics would have used leather.
It had to come from somewhere. If you and the Inquisition didn't kill for it, some one else did and you're consenting to the kill by using the spoils.
Dragon scales and ram leather are not willed into existence, after all. You want armor with cold resistance, then a bear or a fox died so you can have it.
I didn't say all the meat came from the magical freezer section or anything.
Let me put it this way. I don't like meaningless casualties.
Those animals got killed for nothing, not for their leather or meat.
They just got caught into a fight which they didn't hold any sway over.
Their death meant nothing but an unfortunate accident.
I had no intention of harming those beautiful creatures but it happened anyway.
And that's what I just don't care for.
I did post this as a half joke at first but... 