Celebrating and respecting the sacrifices of soldiers and what they have had to endure; watching their friends die, always living under artillery fire, no hot showers, warm beds, limited diet availability, etc, should be undertaken separately from a study of the motivations behind their service or the context in which they served.
Says who? The Wehrmacht were complicit in the deaths of tens of thousands of civilians in Russia yet we still have to sit through vomit-inducing 'good German' memes on this forum from people who should know better.