I've never associated the red poppy with support for war or militarism-- only with the motto: 'Lest We Forget'. Apparently, some of us have.
If it was just WWII, I'd be happy to go along with the whole thing. But it's part of a long history of propaganda to convince people that the wars of their rulers - past and future - are wars for democracy and freedom and all that good stuff, when in fact, they're almost always wars for imperialism and profits. I refuse to be part of it.
World War II is no different.
The myth of WW II as the "good war" has caused the arms industries, war departments (and their militaries), capitalist oligarchs and their sock puppet governments and their War Parties (any political party that supports war) and the Fawning Commercial Media to jump all over glorfying war so there will be a steady stream of young people to fight in past, present and future wars.
Notice: FCM and people who drink this Kool-Aid phrase it, it's: "Lest We Forget the sacrifices of OUR SOLDIERS", not how horrible, vile and obscene war is (to ALL who have the misfortune to experience it.)
The last time the phrase "Lest We Forget" held its original, pure, virginal meaning before it was corrupted, perverted, raped and hijacked by the capitalist oligarchs who run society was a few years after WW I.