I don't understand why you are downvoted, we might not like it, but it's true. Circumventing drm is not legal.
The DMCA states: No person shall circumvent a technological measure that effectively controls access to a work protected under this title.
And defines circumventing as: (A) to "circumvent a technological measure" means to descramble a scrambled work, to decrypt an encrypted work, or otherwise to avoid, bypass, remove, deactivate, or impair a technological measure, without the authority of the copyright owner; and
(B) a technological measure "effectively controls access to a work" if the measure, in the ordinary course of its operation, requires the application of information, or a process or a treatment, with the authority of the copyright owner, to gain access to the work.
Which means that it doesn't even need to be good drm, a rot13 'encryption' is good enough.
Violations of the DMCA can be criminal and can result in prison time.
Dumping a game cart or digital download on switch cannot be done without circumventing drm, and is therefore, unequivocally illegal, unfortunately.