Understood. But it's also important to note the impact on future generations. Europe tells us the future, and no attempt to try to accommodate them is going to change that.
Yes, regarding their generations, we must keep track of radical IMAMs and mosques, and take appropriate action.
When a local mosque acts like a local armory, as has been seen very recently in Europe, we know we aren't being proactive, but are being reactive. In this case, being reactive means tens or hundreds of American men, women, and children dead.
So, handle the current first wave. And handle the current population.