Could Angela Merkel save lives by outlawing Christmas?

In the wake of the news that most probably a radical Muslim has driven into a Christmas market in Berlin, killing at least twelve people and injuring dozens more , the question arises: should Germany outlaw Christmas? After all, it was a Christmas market that triggered the attacker. And even if the attacker wasn’t triggered by the Christmas holiday, such gatherings of Christians make them an easy target for Muslim attackers.