The immam is right. Good Muslim girls don't get abortions, don't sleep around and get sexually transmitted diseases that may sterilize them, don't pair up with girls for sexual relationships and plan from their earliest years to marry and have children.
Euro girls are trained by their socialist, materialist, hedonistic governments (and religious leaders if you are speaking of Nordic Lutherans) that faith in family, God and respect for culture are at best old-fashioned and at best racist.
The best thing that could happen to Europe is for young people to give the finger to their governments and have a counter-revolution similar in practice to the 60s hippie revolution. This time continue to reject globalization but put faith in tradition, not left wing causes. A true revolutionary woman in Europe is a heterosexual Christian who wants to marry and have a bunch of kids.