It’s literally not a moot point, repeating it doesn’t make it so, unless you’re understanding of what that means is incorrect. No idea why you’re mentioning styles of play, ironic.No, it's expedited because it is football. Players become nationalized just for that reason and to play for a certain NT
I get the romanticism behind your concerns.
But it's really a moot point:
It's not only that there is no pure nationality nowadays.
It's also that there is no such thing as "national style of play," based on a certain football culture.
You don't have England playing 'English' football, Germany playing 'German' football, and Brazil 'Brazilian'
Yes, there was a time when all that obtained, and back then it was meaningful to say we want English football at the national team and an English manager (mind you, that part had more to do with transmitting the right ideas, the ideas of the national style of play, than being a national)
Since football has become globalized and football styles mixed up in all sorts of ways, it's ridiculous to pose these kind of concerns in 2024
Pretty much all national team players either grew up in the country they represent, were born there or have family from there.
The manager is the most important person in football, you have mentioned how many times that Southgate/Deschamps need to leave to let their countries flourish. So you definitely believe they are important, so why should nations get to just hire world class managers of other nations? Goes against the whole idea of nations competing against one another.
Unless international football tournaments aren’t nations competing against each other? If that is not what international football is then fine.