I don't see the harm when there is no name calling or condescending remarks it should be left open.  Many minds could be improved by experiencing other ideologies.
Sad but true, we used to have many Mexican rv contributers.  They were scared off by nationalist and negative comments. 
It's time we realize that the internet and this forum isn't read or contributed to by just one country.  
Open your minds people.  Get with the program.  If not, you'll be left behind.
As a good friend of mine recently texted me:
"It’s up to the young people now.  Our generation sold out."