Exactly. You wouldn't let just anyone in your house, would you? Only those that align with your values are welcome. So why do some people insist on welcoming people that not only don't align, but openly proclaim they want to kill and profit off us? It'w just stupid...
I don't think borders should be completely shut off, but they should be controlled. And whoever comes in, they need to be tested. In my country, Romania, while we do have problems, this isn't one of them. We don't welcome any and all refugees. And those that want to stay must learn our language, our history, our national anthem, that sort of thing which ingrains our values in their mindset. Pass that and bring something to better the society that welcomes you, you're a full member, otherwise, tough shit... This isn't evil, going into another society is a privilege, not a right.