Just because you haven't read about the issue in a major US paper doesn't mean it doesn't happen.
"Few serious people" make blanket claims of "few serious people claiming" without realizing they are engaging in a tactic meant to shame someone over expressing an unpopular idea.
As far as unpopular idea go, I think "immigration is good for the economy" is pretty unpopular nowadays in France (and most European countries).
Ignore the stupid, racist comments.
http://www.westernyouth.org/articles/shocking-all-rapes-in-o...
The only non-blog article I could find on this was from NRK in Norwegian: http://www.nrk.no/nyheter/norge/1.6944861. Translating through Google, it says the police only starting keeping statistics on rape in 2006 (?!?) and that there were 21 in 2008 and 11 in 2009.
According to Wikipedia, the Oslo metro area has 1.4 million people and Norway has a per capita rape rate of 20 per 100,000. So on average you'd expect something like 280 rapes per year in Oslo. Something here doesn't make sense.
And I live in the UK, and could read anti-immigrant rhetoric in the papers every day. So I'd disagree with your "unpopular idea", more's the pity. For example: http://www.mailwatch.co.uk/tag/immigration/ Popular points of views, widely claimed, and yet I would not call them serious people. But I do think they deserve shame.