Nowadays every country is involved in capitalism, whether they like it or not. Also, non-capitalism doesn’t imply authoritarianism, take for example democratic socialism.

Classic capitalist brutality, whoever dares to speak out is crushed.

Won’t work if the card has multiple partitions, also might not copy symlinks properly. dd is the way to do this if you want an exact copy, you just need to be very careful. You can take a disk image, that way you only need one slot.