In 1985 Krister Stendahl infamously advised leaving room for "holy envy" in response to the uproar over the Mormons' plan to build a temple in Stockholm.
Sweden ended up getting fewer than 10,000 Mormons, but got 800,000 Muslims instead.
Stendahl, who repudiated his own faith tradition in favor of "ecumenism", wasn't careful in what he wished for.
Here he was in 1997, blaming both (Pauline) Christianity and Islam for the trouble caused by their "universal claims":
But there can be no doubt that it is exactly the universal claim of Christianity (or Islam) that makes for trouble rather than for peace.
Sweden liberalized under the influence of his ilk, invited in the world, and was repaid with soaring immigrant crime. Twenty-five years later there is no doubt that such multiculturalism has also made for trouble rather than for peace:
Crime has become the number one issue in Sweden; before she said a word about migration, Andersson boasted that her party added 7,000 new police officers, built more prisons, and drafted laws creating 30 new crimes. She decried “those who claim that it is certain cultures, certain languages, certain religions that make people more likely to commit crimes”—yet her own government has substantiated those claims.