I just looked it up. The numbers vary, but it looks like roughly 15% of Amsterdam‘s population is Muslim. Here’s what happens at that level:
“When Muslims reach 10% of the population, they will increase lawlessness as a means of complaint about their conditions ( Paris - car-burnings). Any non-Muslim action that offends Islam will result in uprisings and threats (Amsterdam - Mohammed cartoons).”
Full discussion here:
https://virtueonline.org/what-islam-isnt-dr-peter-hammond