As someone who spent the majority of my life around them, I was pretty much brought up around the notion that it was better to have one and not need it than to need it and not have one. At the end of the day, they're essentially just another tool; with proper maintenance, storage, and safety precautions, the danger level doesn't really differ that much from your average chainsaw or lawnmower. Granted, ownership is still a fairly huge responsibility, and everyone is entitled to their own opinions, so I'll just leave it at that before someone decides to flag this, despite my attempts to objectively tackle the issue from a non-political perspective.
Concerning the MoCs themselves, these are very well-done. I just spent the better part of the last two weeks or so on a figure with a PDW built around a Star Wars Constraction Blaster, so looking at these makes me feel like a kid in a candy store. Nice work!