Tough luck UK, you blew your wad on Ukraine and now you don’t have jack to try to fight off Argentina. It’s over for you.
Every Argentine politician promises to "reclaim" the Falklands. None of them have ever actually invaded the Falklands. Shooting one's mouth off about "las Malvinas" is just a requirement to get elected over there. They were talking about "Malvinas Argentinas" when I was there in 2010-2011.
I don’t think they’ll attack with Biden in the White House, since Biden’s bunch will use it as a pretext for Regime Change, due to his liking of Trump.
But with Trump in office, things could be much different, and Trump will be in no hurry to help the UK, not one bit.