I am probably oversensitive about integrating patriotism in with worship on Memorial Day (or Fourth of July, I suppose). Honoring the military and singing patriotic sons with some God-ness thrown in was a staple of worship on national holidays in my youth, and that continues in many places, so far as I can tell. It was subdued this morning at my church - I have seen worse, certainly. And the sermon took up elements of forgiveness even after war and injustice that I thought were spot on.
The stereotype is that conservatives drive this more than liberals, and while I imagine there are many exceptions to that, particularly among the seniors, I don't doubt it's true. It is the same lack of focus in Christianity, the same "well it's a good thing so God must approve so it must be appropriate for worship" chain of reasoning that I fault liberals for. It's muddy. It's usually wrapped around a freedom-of-worship theme, plus a sacrifice-for-others theme. Those are both fine, but it doesn't take much imagination to see that evil causes also attract people with courage and self-sacrifice.
Also, it makes the whole idea of where our gratitude is directed cloudy - again, the same complaint that I have about liberals, so I should take especial care to be evenhanded. In both cases, the proponents have emphatic, and completely unconvincing, explanations as to how they do too understand the distinction.
As these things go, any suggestion of downplaying becomes heard as disrespect, rather than putting the virtue of patriotism in it's proper slot. Make too much of a fuss and people think you are anti-military, or anti-patriotism, or whatever.