Basically, they are trying to reenact the Nazi regime in the Middle East. Nothing to really joke about at all. They tore down and destroyed irreplaceable artifacts and relics.. There is no rational logic for anything they are doing when they take it that far.
<blockquote class="twitter-tweet" lang="en"><p lang="en" dir="ltr">2 days before anniversary of London bombings, <a href="https://twitter.com/hashtag/ISIS?src=hash">#ISIS</a> flag is spotted in front of parliament - via <a href="https://twitter.com/rConflictNews">@rConflictNews</a> <a href="http://t.co/q6aRSd5Vgp">pic.twitter.com/q6aRSd5Vgp</a></p>— Julie Lenarz (@MsIntervention) <a href="https://twitter.com/MsIntervention/status/617706951636590592">July 5, 2015</a></blockquote> <script async src="//platform.twitter.com/widgets.js" charset="utf-8"></script>