> To be fair saying "One of... is..." is a tautology and doesn't make sense to disagree with.

I disagree pretty strongly and can provide as many examples as you would like:

- One of the biggest health problems in America is too much bicycling

- One of the biggest health problems in America is too little automobile travel

- One of the biggest health problems in America is too much space travel

- One of the most nutritious foods is rocks.

I think instead what you mean can be best explained by reading the wikipedia article on weasel words. [1]

[1] https://en.wikipedia.org/wiki/Weasel_word

I was being facetious :)