@Crisphead I think the difficulty here is that you appear to have reached a view that you are comfortable with the current balance of UK and international pupils at Harrow. That is, of course, entirely your prerogative.
What becomes harder to take seriously, however, is the suggestion that the phenomenon itself doesn’t exist. The growth of the international cohort at Harrow is widely discussed and acknowledged, including by many current parents. One can be relaxed about it, or even see it as a positive, but denying that it exists at all does rather stray into rose-tinted territory.
Our own research into the school was extensive and went well beyond open days and tours. We had multiple calls and meetings with current parents specifically about this issue, attended Speech Day and Prize Giving, DS went through the full admissions process and received an offer from a house traditionally regarded as having a stronger UK cohort.
DH is also an Old Harrovian, so we have had the opportunity to see first-hand how the composition of the school has evolved over time.
Without exception, every parent we spoke to was entirely open about the fact that Harrow now has a sizeable international, and particularly Asian, contingent. Importantly, they were generally quite relaxed about it and had accepted or embraced it as part of the school today. But none of them attempted to suggest that the shift itself doesn’t exist.
One of the points that arose repeatedly in those conversations was the long-term network. A traditional expectation of schools like Harrow is the strength of the lifelong domestic network that emerges from them. That inevitably changes when a meaningful proportion of pupils ultimately disperse back to international jurisdictions after school.
There was also a post earlier in this thread from @elenuntis, a recent parent, who described the effect of a heavier international weighting in fairly measured terms. You appear to have looked past that contribution entirely. It may be worth revisiting, as it reflects exactly the point being discussed here.
If you are comfortable with the current balance at Harrow, that is a completely reasonable position to take. But please don’t suggest the phenomenon itself doesn’t exist simply because you are comfortable with it, or have chosen to look past it. Doing so places you somewhat at odds not only with those who have researched the school closely, but also with a number of current parents who openly acknowledge the shift.
Equally, it’s probably sensible for any prospective parent not to become so carried away by the historical name of a school that they overlook the reality of how it operates today. Prestige alone shouldn’t prevent an honest assessment of the current pupil mix.
In any case, families will weigh these things differently when making their decisions. We simply preferred to look at the reality as it currently stands rather than the reputation the school built decades ago.
At that point the facts are fairly clear, and prospective parents can draw their own conclusions.