McDonald's is so entrenched in the fast-food market that any decline or take over will be very very slow. as the figures obviously state above, they have an obscene amount of locations and in consquence, more access to the general population than any other chain....they will always win the war on convienance and impulse buys while on the road or traveling.
a foothold like this doesn't fall in a day or over 1 or 2 lawsuits, or one michael moore wanna-be getting fat by eating their food....
FF