Playing devils advocate; what would you say if German players wanted to wear Iron Crosses or even swastika's.
They never actually would as Germans do not have a remembrance service or day - they prefer to forget.
So in a way poppies could be seen as rubbing their noses in it.
Just a thought.
IN FLANDERS FIELDS
In Flanders' fields the poppies blow
Between the crosses, row on row,
That mark our place: and in the sky
The larks, still bravely singing, fly
Scarce heard amid the guns below.
We are the dead. Short days ago
We lived, felt dawn, saw sunset glow,
Loved and were loved, and now we lie
In Flanders' fields.
Take up our quarrel with the foe;
To you from failing hands we throw
The torch; be yours to hold it high,
If ye break faith with us who die
We shall not sleep, though poppies grow
In Flanders' Fields.