” They should be simply returned to their country of origin.”
I think you’ll find the country of origin doesn’t want them back. Also, this invasion is, indeed, an invasion. The “refugees” are on a mission to out-produce the natives in their target countries and then, impose slavery, Islamic taxes (on non-Islamic people) and, Sharia law. Sharia law is heavily weighted against anybody who isn’t Islamic. In a word, they want to impose life like it was in the seventh century on the entire world. The countries that took them back would not be fighting for Islam, they would be impeding it.
A Muslim who worked for me and who would have been the man you pointed to if asked for a moderate Muslim was intent on having a minimum of 15 (male) children. (Females don’t count.) I asked why and his straight, off-the-cuff answer was, “we need soldiers for the Jihad.” This was in the late 1980’s.
Too bad. What should be illegal is one country dumping their problems on other countries or weaponizing mass immigration.