This is another example of someone opening their mouth without engaging the 'suitability' filter first - much as teenagers and old people do on a regular basis.
This silly man has pointed out the obvious, when it simply did not need to be stated, and got himself into trouble and quite rightly so.
It is quite true that for the remit of this (fictional!) series, the inclusion of ethnic minorities would not accurately reflect the population as delineated, but you can do that in fiction, because you can by definition, do anything in fiction.
Where this ludicrous individual has slipped up, is trying to equate fiction with real life - suggesting that English villages lose their appeal if there is an ethnic minority input into the population, which is untrue, and grossly offensive.
Statistics show that ethnic minority viewers do not watch or enjoy MM, but that may be more to do with its stupefying stereotypical scenarios, its clunky dialogue, and its twee view of the world - once again, perfectly acceptable as fiction, but not appealing to all viewers.
He has made a clumsy point badly - inferring that ethnic minorities should be excluded from this type of drama - because their ethnicity makes them unsuitable, which is racist.
I believe what he meant to say is that adding in an ethnic mix would be untypical of the scenario his series portrays, and again, that's fine because it is fictional - it when you try to draw non-existent parallels with real places and people that you run into trouble.
A man of such obvious intelligence should learn either to express his views coherently, so that no confusion can occur, and if that is not possible, don’t give interviews to national magazines!