I'd be skeptical. Hopefully the new government will make things different, but with precedents such as [1] and [2], I'd give them a good couple of decades to prove they're going to remain stable.
If you're looking for stability + healthy startup environment + South America, look into Chile.
Source: Am from Uruguay
[1] https://www.bloomberg.com/view/articles/2015-03-13/now-argen...