So in the last day or two, four Supreme Court Justices decided the following two things:

1. People who rape children cannot get the death penalty
2. The government has the right to keep all citizens from owning guns

Another judge, Kennedy, agreed on the first, but not the 2nd. I think I can point to these two things as reasons why our left leaning Supreme Court judges are far more activist than the right leaning ones. In the first, they are going against both legal and social precedent. I doubt there's any other time in our history where most people would have been against executing someone who raped a child. In the second, these four Justices decided to ignore the plain language of the 2nd Amendment of the Bill of Rights, and what is judicial activism other than ignoring or reinterpreting the Constitution?