I wish that people with this mindset could be denied entry to Europe even for vacationing. They are aware of the context, they know that they are entering a ho

I wish that people with this mindset could be denied entry to Europe even for vacationing. They are aware of the context, they know that they are entering a house where also a husband and two children are living. What makes them believe that they pose any kind of threat? I'm not expecting them to ask for a coffee and discuss the matter and further proceedings at the table, but threatening everybody with a firearm like that?