The literacy rate makes me want to cry.
No, using a general “you” in a hypothetical isn’t saying “every body and anybody as they are”. It’s usually superseded by qualifiers that specify who the “you” would be.
Examples; “I mean you could rob a bank, if you had the right team.” “You could run a marathon, if you trained for it long enough, or if you already have amazing stamina.” “You would be able to pass your test, I did! Maybe you should’ve studied for it.”
I swear it’s elementary school English. How so many people weren’t even taught sentence structure and how words change depending on placement has me completely baffled. The United States school system is in shambles.