I read about the half of this, so if someone said this already I apologize. You can attack through the terrain and pretty handily win if you are willing.
I went toe to toe with him a few times but was having a little difficulty dealing with the poison because I wouldn't pay enough attention to what was going on and just die from that. I ended up using the hunter's axe in its extended mode using the pillars strategically and cheeseing the fact you can attack through objects. I would do a fully charged R2 through the pillar hitting the beast on the other side, a few of those and it was done. I felt a bit crappy for it but decided it was fair because he can attack through it as well and would hit me if I hugged too close to the pillar.
Bloodborne lets you know early on that enemies are just gonna do that shit towards you. "I learned it by watching you." "Ok, I'm being methodical, even tactical here... and these dickwads are hacking at me cheaply through a solid wall. I see how it's gonna be." Sure enough, it works, probably too well (I'd say it highlights some janky level design/AI). But the enemies keep exploiting it and so will I.
It's only leveling the field by playing by their rules.
Nowadays I find it really hard to keep playing something if it doesn't grab me, but in the past I've powered through some pretty rough experiences. Especially as a kid, when you get one game rental and that's your lot for the entire rental period.
That said, I've returned to games that I initially had a sour impression of and loved some of them, like Dragon's Dogma and Nier.
I'm gonna echo the impression that it was probably a fox or other wildlife. Bear in mind that fox vocalizations can still sound more varied than what's exactly recorded in those low-fi clips. The fact remains that probably millions of people have heard this very sound or something similar, and gone to the internet to express how unnerving it is. If you are personally convinced, all the more reason to call the cops. I'll say, having personally camped for a month in the wilderness of Maine, it was VERY disturbing when I heard foxes the first time, until a friend immediately identified them, and it was still weird to fall asleep in a tent still hearing it.
Owls, too, can sound remarkably like a woman, especially in flight. Only one owl in the world really "hoots" the stereotypical way, and many have surprising vocalizations. This contributes to cultural associations with death and their importance as a bad omen in cultures worldwide, ancient and modern. A fox is a distant sound that moves over time, an owl is suddenly this loud and weird sound, that might fly directly overhead very fast, continuously making this sound that makes you think you're about to die, and then quickly fade away again as it continues flying.