In Comstock, Justice Thomas made a very astute point:

But the Constitution does not vest in Congress the authority to protect society from every bad act that might befall it

Justice Alito seems to refute this notion.

The only additional question presented here is whether,in order to carry into execution the enumerated powers onwhich the federal criminal laws rest, it is also necessaryand proper for Congress to protect the public from dangers created by the federal criminal justice and prison systems.In my view, the answer to that question is “yes.” Just as it is necessary and proper for Congress to provide for the apprehension of escaped federal prisoners, it is necessary and proper for Congress to provide for the civil commit-ment of dangerous federal prisoners who would otherwise escape civil commitment as a result of federal imprison-ment.

So if there is a problem, does the Federal Government have the power to fix it, just because it is a problem? The Supreme Court seems to answer that question affirmatively.