You somehow missed the second part of that sentence: "No, the statement is completely true: 100% of your rent money goes to someone else, and you also don't get any asset to sell later on."
The oft-repeated statement that "renting is throwing your money" is an implicit contrast to owning a home, where the mortgage payment "builds equity" in your asset that can be sold later.
"Throwing money away" means you don't get to own something that can be sold for money later on. That's why we "throw money away" on gasoline, but not "throw money away" in a savings account.
The second part of my argument is that throwing money away isn't necessarily a bad thing, because the alternative (such as paying to own something) can end up being more expensive and being a worse deal financially.
No, I read that part of the sentence. I don't know why you'd assume I didn't. Should I claim you didn't even read my entire response?
I've never heard someone claim I am throwing away money when I buy something consumable except rent. It's a stupid statement that doesn't convey any useful information.
That’s not what that expression means though. Wikitionary has it as “To spend money foolishly or indiscriminately; to waste money without regard of the consequences.” Which sounds about right.
How is it foolish to spend money on housing?