As a user of threaded fasteners, the inclined plane.

That’s never explicitly stated in the movie. I believe it’s hinted at just enough to make you wonder. Which in turn makes you wonder what even makes a human person. In the sequel I think they pretty heavily lean on him being human.

Cockroaches are bad in my neighborhood, walk the dogs at night and you see them scurrying across the sidewalks.
I sprinkle DE all around the outside edges of my house, especially any nooks or gaps, paying attention to porches and doors; it goes under and behind the stove, fridge, shelves, etc.
Besides a few spiders, flies and mosquitoes I get no critters in my place.

I don’t disagree with you, but maybe that’s why the ACLU is forced to play the game this way.

Maybe, just hypothesis from a dumb guy, maybe this case is a tactical choice. It’s higher profile, It’ll progress through the courts faster, they suspect the Supreme Court will be more sympathetic to this plantiff and this get the judgements that protect everyone, I don’t know. Maybe it marketing to appear impartial, “See, we’ll even defend a nazi.”
I don’t know, I’m shooting from the hip while sitting on the toilet.

Could just be a color casing process.

Having been through boot camp I can tell you there is a big over lap between what officially wouldn’t fly and what unofficially does happen. He became a spokesperson for The Corps, even getting promoted after leaving service, of course he wouldn’t sully the reputation of the Marine Corps on record.

Hired to coach actors to act like drill instructors because he was a drill instructor. Turns out it was more effective to just have the former drill instructor act like a drill instructor. Turns out the drill instructor did do it better than the actors, and ended up being one of the most accurate portrayals ever put to film.

That’s always been my take. The Navy has the experience with big-ship operations, and operating smaller craft from those large ships, and it’s supply and logistics would likely evolve from ocean to space faring ships.
The Marines are historically an amphibious force, an extension of the Navy, specialized in ship-to-ship and ship-to-shore operations; ship-to-surface would be the evolution of that.

No they wouldn’t. That logic has not stopped one single, shitty remake and almost all of them have been worse than the originals. So bad we forget they even exist. Robocop, Mummy, Red Dawn, Total Recall come to mind… garbage. I think Road House, Twister, and Mr & Mrs Smith are getting remakes this year, and they don’t look good either.