Judicial activism is altering laws according to what the judge likes, usurping a legislative role. The supreme court striking down state laws is the typical for

Judicial activism is altering laws according to what the judge likes, usurping a legislative role. The supreme court striking down state laws is the typical form of such abuse because the typical supreme court case is deciding whether a certain new law has a problem. Roe vs. Wade is practically almost the same as a law that allows abortion, the other threatened precedents cited in the other comments are similarly almost laws that allow various rights, and so there is very little "upholding" of existing laws in this demolition and threatened demolition of "liberal" norms.