The law allowing this happen was already passed, by a democratically* elected government. All the court is saying is that the law isn’t unconstitutional. They don’t decide what laws are “right” or “wrong”, merely that it doesn’t (in their opinion) contradict the constitution.

*how democratic it is is debatable, but still… an election did take place that put congress (and the president) in power

It’s not even a running consistent with their own dogma. They’ve gone completely rogue.