An elderly Jewish friend always had the feeling the Jews should keep their heads down and not try to attract possibly negative attention that could bring negative consequences for other Jews. She even gave this as a reason that Lieberman should not have run for vice president. She lived her whole life in this country.
Considering how most of the posts regarding this topic have done wonders in bringing out nothing but condemnation against a Rabbi who simply wanted to be allowed to display a Hannukah menorah...
...it's a very common, very safe, attitude for Jews to take.
My folks taught me the same way. (but it doesn't always stick)