Why does Argentina care so much about the Falklands?

[I spent the winter writing songs about getting better]

They're one of the most meaningless territories on Earth, and the last time they tried to take them they got more soldiers killed than 1/5 of the Falklands population and undoubtedy the cost of the operation is well more than the Falklands economy even if they had kept it (Of course they did deserve their ass-kicking due to being ran by a right-wing military dictatorship, even if it was at the hands of Margaret Thatcher). Really doesn't make any sense.

[I spent the winter writing songs about getting better]

At least British possession of the Falklands really doesn't make any sense.

It's a no-brainer who the population of it would support.

[I spent the winter writing songs about getting better]

You're talking about a weakly justified seccesionist campaign, with very superficial justification. The inhabitants of the Falklands certainly have more ties to Britain, considering there are no indigenous inhabitants and they're all descendents of British settlers who came before Argentina was a country even.

A lot of these South American countries have weird territorial claims against each other. Territory-based nationalism because there was little else to build a nation on.

At least British possession of the Falklands really doesn't make any sense.

Britain has had an interest in the Falklands since before Argentina was a nation.

Well, Britain has had intests all over the world. Haven't launched millitary campaigns to defend any other in recent years, though.

In recent years none of the others have been invaded.