Explain to me why am I physically unable to play anything that isnt a STR build

Pure physical can also slather on some some spicy grease to hit weaknesses a little.

I am like you, but putting some points in Faith to enchant the weapon will make it funnier and give you more buffs.
Im gonna try to go full cannonball or archer in other run.

Yeah idk and this isn't really a good comparison. Standard/holy damage vs strike damage on an enemy weak to strike

I wished I'd have beefed up a bunch of str weapons before doing ng+ but was unhappy with the damage output and speed of attack on the colossal/great weapons. I'd like to give a pure str build a try

I did my first playtrough with a DEX curved greatsword build and then went for INT the second.
First I smoked margit and godrick but now I'm getting walled by fucking rennala, half of my spells cant reach her from a safe distance (pebble) or have eternal cast times (lorettas bow). Even the magic greatsword takes a full second to swing and deals a third of the damage the BHGS did.
Is the easy mode meme just about comet azur or am i just shit at magic?

Run to caelid and grab night comet and offhand staff of loss
It does the most damage in the game by far without azur

>Is the easy mode meme just about comet azur
Yes but also the entirety of that legacy dungeon resists magic so you just have to deal with it. You're better off stagger locking Rennala with a magic scaling melee weapon anyway. She has superiority at range.

Rock Sling does physical damage.