The Red Poppy already is a symbol of peace
Am I the only one that recalls that in Canada we celebrate Remembrance Day, specifically not Veterans Day? In Canada we remember the dead whereas in the US they celebrate the survivors. It's quite different. Here it's a day on which soldiers recall their fallen friends and remember them, there it's a day on which people cheer for the army.
I know the militaristic US concept of "Veterans Day" is gradually leaking into and corrupting the peaceful Canadian concept of Remembrance, but the day here is meant to celebrate the end of war and also to recall all the horrible suffering and destruction that went with the war, to remember those who died in the war, and who suffered the terrible burden of having to fight it. It's a day on which we recall our losses, not our victories, on which we reflect on the tragedy of war, not its glory.
In that respect I thought the Red Poppy already was a symbol peace, as it stands as a reminder of how horrible war is. It does not recall glorious fighting on the battle front, as a symbol taken from the graveyards of a war it recalls the cost of fighting one.
In short I don't see the point of a white poppy. I already see the red one as a symbol of peace and a message that war is a horrible thing, to be undertaken only with a heavy heart in the most dire circumstances. Anyone who wonders why should go walk through Flanders field and see just how incredibly many men lie there among the poppies.