Damage May Seem a Little High, But the Real Culprit Is How Easy to Crack You Are if Immobile
Raw defensive stats just DO NOT cut it anymore. Raw offensive stats feel amazing, but if you build an equivalent amount of raw defensive stats, you won't be getting that same feeling. Simply put, if you don't have some form of way to avoid damage entirely through dashing, untargetability, or something else, you are going to die. The last time I saw someone walk out of gank has been a long time. Flash may save you if you were already pretty close to your turret and had a good bit of health left, but otherwise you are just going to die.
It's just so sad that at many points in the game it seems like champions who are just squishier live through many more situations just because they had more mobility. Relying on simple bulk is useless these days.