Remington went bankrupt because the current owners loaded it with so much debt it just couldn't survive. To be fair to Remington and the Marlin issue, when Remington bought Marlin, Marlin was already producing crap guns. The machinery was so old and worn out that when Remington moved production they left almost all of it behind. Problem with the move is they also lost all the long term staff that knew how to make Marlins. If took a few years but the Marlins that were being produced the last ten years were actually very good quality. I have a 2015 Guide gun in 45-70 that will shoot clover leafs at 100 yards. It is finished and fit nearly as well as the JM gun I have from the late 80s.
Remington is one more company that has suffered greatly from Financial Engineering. This is a pretty good article about the recent history of Remington.
Remington History