That might be a bit of a stretch
With the number of assaults in several countries it's not very likely it was orchestrated. It's it's more likely a cultural conflict driven by misogyny.
A little anecdote and coincidence ; I was talking to my wife's granddaughter about Las Vegas. She's a very attractive 29 year old. She was surrounded by 10 Arabs in a casino. They were crudely trying to pick her up. She was frightened and bolted away. The same group was around the pool the next day and were loudly talking about sex, again, crudely. This is too similar to what happened in Europe to ignore.
Is it so wrong to choose who we're going to let in?