rover demise

It gobsmacks me why there's such an outrage about Rover's demise.
It is common knowledge that a car plant cannot operate at under about 100,000 units a year-Rover made 6,000 ? [ i think - although maybe 12,000].
Rover was given away by BMW for -£500,000,000 so BMW knew it was less than worthless when it did it.
It has operated without much advertising since - and as car manufacturers spend oodles on that, they should know advretising isnt wasting money.
Profitable bits were ringfenced off - ie the directors knew the main manufacturing arm was worthless.
In short , everyone knew it was a serious dog and its only possible useage was to give the owners kudos and money. (and as it unravels, serious notoriety )
Why did the government get involved - it really beggars belief !!!!!!!