Why are you not happy about Mercosur? I'm from EU and I think it's a great deal!

It is a trade deal. It is always bad for some, good for others.

We are at a crossroads if we continue with globalism in the remaining world or if everyone is on its own. I prefer the first. The EU, Canada, Japan/Korea/other Asian states form a great alliance not associated to China or the US. Will not help military wise, but will help market wise.

Trade deals with poorer countries usually hurt the working class of the richer countries and benefit the wealthy. It's basically freedom to perform labor arbitrage.