Computers are primarily used for copying data, and thus by extension are perfect piracy machines. Should Nintendo go on an epic crusade to ban computers because many people use computers for piracy?

It doesn't help that the copyright system is heavily unfavorable for the common folk and society as whole. Some pirate as a workaround or in protest of the current draconian copyright rules.

Morally there is an argument to be made for recent works against piracy, but why should we care about old stuff that arguably should have already entered public domain like SNES games from the early 90s?