Guinsoo's... not even gunna comment
They don't even build BOTRK right now either, that pops in and out of the meta on them every once in awhile.
Most kindreds, especially ones with 125+ games tend to go:

They neither favor lifesteal or crit, or even attack speed, but favor just shredding a percentage of your health while kiting, chasing, and shredding armor for base damage. This build makes them more of an attack speed bruiser than a late game scaling marksmen. This build benefits them neither early game, mid game, and falls off late game if they lack marks and this is their best build. Transitioning them to a crit build would make attack speed %health more viable along with doing critical damage rather than their raw base damage (which isn't great).
Plus, BOTRK is getting changed and BC got nerfed, two items gone out of their "frequent" builds, so basically this patch they lost an armor shred, CDR, and movement speed bonus item, and next patch a %hp attack speed item will lose its %hp damage and gives less attack speed. Additionally crit builds would be more balancable since you can build a randuin's instead of them just rushing cleaver and killing you regardless.
https://champion.gg/champion/Kindred