Hi John,
I've no problem with field walking, I think too many people who do it have been tarred with a particular kind of brush when only a minority do the nasty stuff. Metal detecting in France or Belgium, does, to me; suggest treasure hunting. We've had many debates about this on the forum, especially as you point out, about aircraft wrecks. I would actually support you in many respects for doing a bit of casual relic finding.
I'm fortunate in that my dead great uncle and grandfather have war graves.I think we both know the chances of finding someone who can be identiable these days are getting harder and harder. So, I would always come down on the side of any argument protecting the chance to give them a decent burial. But I can't have it both ways. The thought that keeping an artefact might stop that from happening would really make me feel guilty.
We carry on visiting - I'll be back soon. For me it is a genuine pilgrimage and I make no apology for it. I take friends and first time visitors to spread a little knowledge (they say it's dangerous) and spread enthusiasm. It works.
As long as we can respect each other's position while not encouraging the
sharks (for want of a better word), then all's well.
Mark