What on earth makes you think that recyclers won't have access to the disassembly instructions which exist for the *sole* purpose of informing someone how to tear down the laptop for *recycling*?
That's like claiming repair shops won't be able to get instructions on how to repair them. iFixIt didn't risk the disassembly that they claimed couldn't be done. The lab in question here managed to do it in a 2 minutes or less, safely, with tools that anybody can buy.
You're heading into conspiracy theory territory here. You might want to back up and actually *look* at the available facts before making unsupported, merit-less claims.
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No experience with #1 (the adapter), so I can't comment on it, except to say that I've never seen any device connector on an Apple device that could be disconnected by the weight of an ethernet cable.
If #2 (screen) & #3 (battery) are actually true, then it sounds like you got a defective unit. Take it back and exchange it or get it fixed. If it were wide-spread enough to be a design issue like you posit, it would have made the news by now. (Especially given how they like to pounce on any 'news' that is even *remotely* Apple-related.)
As for #4 (shocks), it's far more likely that you were grounding yourself out on the case. It probably stopped recently due to typical, seasonal change of atmospheric moisture level (and/or activity) changing how much of a static charge you build up. I went through that once, and actually killed a cordless phone once due to a static discharge that was big enough to completely numb my arm up to the elbow. (hurt like a mother, too)