Um..... well, Rusty, I don't think the issue is cut and dried.
It's a difficult one, there are pros and cons,
I agree with you that "nationality" should be your bloodline , rather than where you are born.
Having said that, my eldest grandson has duel nationality as he was born in New York.
I don't really understand how it works? You say your grandchildren are entitled to Irish passports as you were born in Donegal. but not their children.
Why not their children?
But I digress.......I can see how incomers might be resented if not born here - but I can also see that we might need the added expertise - and the funding from winning more medals - if he sport is to flourish.
As you say, a tricky one.....
I remember Zola Budd- she ran with bare feet! What a lot of controversy and bitterness there was at the time about her running for GB.
And then for her to do a volte face and say she is South African....
I also take your point about Chris Froome.
And then there's Greg Rusedki. I can't remember the details , but wasn't he Canadian and then he played tennis for Britain - through his grandmother or something similar, was it?
I think maybe it's ok to represent GB if you hold duel nationality? it's not like importing and paying for someone to play for the country as in football for instance?
Do you reckon?