I will share the infamous page 7 of "Investigating Math" as soon as I can. I loaned my book to an acquaintance who is currently discussing these issues in a public forum.
But to dispute the fact many of these new texts don't have a decidedly liberal bent is ludicrous to me. And I wouldn't even argue that it affects the math severely. My concern is that typically kids are taught, more and more, to despise things about this country while accepting wholesale the virtues of everyone not-American. This is multiculturalism at its worst.
I would direct you to the recent defeat of the history standards by a vote of 99-0 in the Senate. Even liberals such as Ted Kennedy voted against it. But I guess I'm being non-specific and over generalizing.