This is not a victory as far as I am concerned because there were four Justices that actually voted against that. Each of those four is an enemy to our Constitution and our Republic.
If a small part of a law is found unconstitutional, then the law has to be modified, by congress and signed by the President, in order to meet the Constitutional standards set by the Supreme Court.
If nothing happens, then the entire law becomes null and void. It also opens up new law suits.