Good Lord. Here's how to fix it: play survivalist, dead is dead, no trader.
No. Trader.
Your complaint is "once you've got some skill the game's easy and boring if you play it on easy and boring settings, and it forces you to play on easy and boring settings because that's easiest".
If the wall gets bloody and ugly after you run headlong into it enough times, I'm not sure the right response is to demand the wall be made self cleaning. Can I suggest opening the door, it's right there, and walking through?
Stop playing on easy settings. The game gets more interesting.