King spoke about Syrian and Iraqi refugees Monday. (Brian Frank/Reuters)

SIOUX CITY, Iowa -- Rep. Steve King (R-Iowa), speaking about Syrian and Iraqi refugees, said he can't think of a time when Muslims have assimilated into another culture.

"I’m all about assimilation and whatever people can come here and assimilate and they’re here legally, I’m for those folks," King said. Iraqi Christians, including some King said he recently met, "they assimilate pretty fine into this culture. But I can’t find models of the folks that, say, do the hajj to Mecca, I can’t find models where they’ve assimilated into the broader culture of civilization wherever they’ve gone."

King claimed President Obama wants to increase the number of Iraqi refugees coming to the United States to 200,000; Obama increased the number of Syrian refugees coming to the country to 10,000.

[Fact Checker: Trump’s repeated claim that Obama is accepting 200,000 Syrian refugees]

King said he would train the refugees, give them uniforms and weapons and tell them to go defend their countries. If not, "then send them into Saudi Arabia, where they have the air-conditioned tents at Mecca. Those tents are not busy for 11 months out of the year, and they would assimilate into that civilization like a hand into a glove."

The Iowa Republican, speaking at a rally for Sen. Ted Cruz (R-Tex.), said that "demographics and culture are your destiny" and that Democrats are undermining that fate by increasing the number of refugees allowed into the United States.

King said Germany, where Chancellor Angela Merkel has opened the doors to refugees, is "guided by guilt" when it comes to those seeking asylum.

"The people that are running that country today aren’t responsible for the violence that took place more than 70 years ago," King said of Germany. "But I’m watching as Europe itself is being flooded by the Middle Eastern elements there that are not assimilating."

[‘We love you': Angela Merkel becomes an unlikely hero to Syrians online]

King said he believes many are "economic migrants" who are "coming for the welfare benefits."

King also said he doesn't understand why so many men are leaving Syria for Europe.

"What kind of people would send 80 percent of their men if their lives are under threat, if their women are going to become sex slaves for ISIS, what kind of people would send their men to a country in Europe and leave their women and children to be subjects and victims of ISIS. What is that about?" King asked, using an acronym for the Islamic State.