While I think it's chavvy to disgrace a war memorial, I sympathise with people who think that war memorials are wrong. We shouldn't be celebrating 'war' as something positive, should we? Wars also usually have someone on the other end who may get offended, so they restrict political freedom too.
People should think of other methods to respect the dead. Since most soldiers are christian, maybe limiting 'memorials' to 'well-funded' cemeteries is a good idea.