NN - I can assure you that my hair is firmly on my head.
To suggest that any group of people should forego their right to a vote because of a supposition such as "they have an island mentality" is undemocratic, and at what age would this cut off point be exercised 60, 65, 70 and above. It doesn't make sense. However, GN, having a certain age demographic would be a good place to road test such a theory, so perhaps there should be a thread "Cut Off Point For Older Voters" where that idea could be mooted. However, say for example, someone else suggested, another group of people be excluded from the democratic process for arguments sake let say, "settled Poles" be denied a vote because they COULD vote in a certain way, on a supposition that some would want to bring extended family over, I think and rightly so, that might be met with derision. As you say, everyone is entitled to an opinion, but if that opinion is biased or unreasonable, then possibly there will be a strong reaction but frankly that is a fairly common occurrence on GN.