> Nope.. thats bullshit.
No, it's the fundamental meaning of stock.
> If a company dissolves, creditors are first in line and stockholders are last in line.
Yes, that priority is accurate, and part of what sets (and limits) the value of stock, as is the priority between different classes of stock, where they exist.
> What you buy, when you buy a stock, is earnings (sometimes paid out in dividends) and voting rights.
Earnings are just increase in dissolution value, and dividends are just a partial dissolution.