You're wrong on both of your points. United Were not formed in Manchester. As i said United were indeed formed As Newton Heath lyr fc in 1878. Back in those days Newton Heath was in Oldham. So no they weren't as you put it "founded in the actual city of Manchester". They then Moved to Old Trafford in the borrough of Trafford in the year 1910. So again no, They didn't "move to Salford for a new stadium". Salford, Manchester, Oldham and Trafford are 4 completely different borroughs of the Massive urban Sprawl of Greater Manchester.
Calling United a Manchester club is like calling Wigan or Bolton Manchester clubs. If you did i'm sure the good people of Wigan and Bolton would tell you to **** right off. United are a Manchester club in name only and it is partialy for that reason (read my op for the rest as you clearly didn't the first time around) that City fans used to outnumber United fans in Manchester. It's the same reason not that many People in Manchester don't support Wigan.
However i wasn't using these historical and geographical facts to demean United in any way, something which most people who have contributed to this thread have understood. It was used to show effectively how things were only a few decades back compared to how things are today.
P.S. Newton Heath is now in these modern times very much in the boundrie of Manchester. Out of interest i might add that Mancheter United played their home matches on a field on "Ten Acre Lane" and Ten Acre Lane is less than 100 yards away from Grimshaw Lane which is The Boundrie of Miles Platting which back then was the boarder of Olham and Manchester. You see if United had formed just 100 yards further south they would indeed be a true Manchester club.
Google map Showing just how close United were to the boundrie of Manchester. Note how close MCFC is to Ten Acre Lane... LOL XD