The phrase "accepted as mere" is correct and usable in written English.
It can be used when discussing something that is regarded or treated as insignificant or trivial.
Example: "His contributions were often accepted as mere opinions rather than valuable insights."
Alternatives: "regarded as simply" or "considered as nothing more than".
Protective razor-wire fencing is erected around their compound, the girls receive shooting lessons, and suffering and violent death are accepted as mere facts of life, rather like the weather.
Is it so different from the legislative quid-pro-quo that happens every day, the pork barrel earmarks or the favours to loyalists which are accepted as mere "hardball politics" even though it mocks the meritocracy we are all raised to believe exists?
"The Dancer Upstairs" is a dramatic failure, but, at its best, it offers a frightening suggestion of the way terror can alter reality so thoroughly that, step by step, the fantastic becomes accepted as the mere commonplace.
I'm getting so worked up! Buffoons, clowns and train wrecks are accepted as pundits, mere mouse and remote control clicks away, ever-present on our insatiable, indiscriminate news channels, which have stopped pretending to be anything other than naked grabs at larger audience shares.
False Dawn, a debunking of the theory of globalisation, was a global success, having first been dismissed as mere pessimism and later accepted as a soberly realistic assessment of the state of international economics.
There is a killjoy quality, admittedly, in reading a movie one really likes in such a way and not just accepting it as mere entertainment.
Even if we accept animations as mere fantasy, in which every character is exaggerated for aesthetic or comic effect, the disparity between male and female figures raises issues.
One such outlook is a general tendency to regard the world as a positive place, accepting difficulties as mere challenges instead of impassable barriers.
This was sometimes accepted as a just rebuke, sometimes held to be an impertinence from a mere artisan who slept in the stable.
After a practice has been established, a second element converts a mere usage into a binding custom the practice must be accepted as opinio juris sive necessitatis (Latin: "opinion that an act is necessary by rule of law").
Many years ago -- when I was a mere slip of a girl, scarcely 32 years old -- I had a short story "almost accepted," as I joyously raved to friends, by an institution no less brag-worthy than the Atlantic Monthly.
