?! Have you seen a M4 chip in action? Low energy, high performance. Silent computers, long battery life. Good value on a simple benchmark basis. Not credibly last year tech.
Pre-ARM Macs, sure, but that was five years ago.
Lots of other hardware issues to complain about, however.
Not likely enough surface area for cyanoacrylate to do its magic, though one could try to glue the key pieces together and hope it holds long enough for a partial pull. Likely to just glue the broken piece in there by accident.
Hot glue is gooey and will grab the broken part.