Don’t have any problem with trying to find a peaceful solution. That is what friends (or seconds) are supposed to do.
It was proposing UN Peacekeepers as a solution. The UN is possibly the most corrupt and incompetent organization in the world. I would hate to see what sort or horrors they’d inflict on the poor Falkland Islanders.
While I think it’s valid to criticise a lot of UN Peacekeeping operations as you have done, now, the situation was quite a bit different back then. Until the 1990s, UN Peace Keeping operations were fairly rare, and they tended to be undertaken by forces including significant numbers of troops from first world nations. For example, during the 1970s (the period just prior to the Falklands War), there were only three UN Peacekeeping operations, headed by nations such as Finland, Canada, France, and Denmark. In the 1990s, there were 28 UN Peacekeeping operations, many of which were being undertaken by half trained soldiers from countries with significant corruption problems. How UN Peacekeeping operations are undertaken changed dramatically after about 1988.