It makes it more acidic because it draws out the bases into itself, which you then urinate out.
How? It's not possible chemically. Bases are negatively charged, so if you piss them away then your body will get charged. It's impossible, of course. Water can only _dilute_ the bodily fluids.
And never mind that the blood acidity is one of the most tightly controlled body parameters - you simply can't affect it in any measurable way by eating different kinds of food or drink (that is, until you get a SERIOUS metabolic disorder).
it's that it actively draws them out of your body. Drink it and your blood becomes acidic, leeching nutrients out of your bones and muscle tissue
WTF? Pure water does not make blood any more acidic or basic. It simply can not do it. In reality, drinking distilled water is OK - your body gets more than enough minerals with food to not care about a couple of milligrams of missing dissolved salts.
If it has syntax, it isn't user friendly.