[Pseudoscience-is-malarkey (OP)]

It seems to be.

[Colin2B]

It seems to be.

Based on what evidence?

[alancalverd]

Sales, presumably.

In most UK supermarkets you will find one shelf or rack of "builder's tea" and another of the same size carrying at least a dozen degenerate kinds of perfumed leaf imaginable, so we can deduce that black tea outsells every other pollutant by a factor of about 12:1.

Note for the uncivilised: "black tea" is the fermented leaf of camellia sinensis, and forms a red or brown brew, usually drunk with milk. Not to be confused with black tea, which, like black coffee, is any c. sinensis infusion taken without milk, including unfermented forms.   

There are two circles of Hell reserved for those who make tea like Americans (dangling a paper testicle in lukewarm water), and those who drink anything other than "black tea" (with or without milk) and call it tea. It's just not cricket. Indeed even the modern teabag is a bit suspect: loose black tea must be placed in a warm china pot* and doused twice with boiling water to extract  the tannins and caffeine that make us proud.

*1- gallon metal teapots are permissible at cricket matches, if accompanied by cucumber sandwiches.

[Colin2B]

Note for the uncivilised: "black tea" is the fermented leaf of camellia sinensis, and forms a red or brown brew, usually drunk with milk. Not to be confused with black tea, which, like black coffee, is any c. sinensis infusion taken without milk, including unfermented forms.   

I was about to ask him whether he meant black leaves or tea without milk.
I know very few people who drink tea without milk, although I do have some which definitely tastes better without milk.

[alancalverd]

PS the British Army specification for tanks includes a water boiler with a tap at the back of the vehicle, specifically for making tea. They have never lost a war since the introduction of the armoured tea wagon.