Did 9/11 create sentiments such as, "Christianity is under attack, therefore we must double down on our Christian values", "Bush opposes same-sex marriage, therefore supporting same-sex marriage is unAmerican", etc.?
Interesting question with some historical basis.
Had Mark Bingham received as much attention from the media (and from President Bush) as Todd Beamer, homophobia might have gone down real fast.
The Rev. Jerry Falwell was roundly criticized for saying that gays and lesbians, and feminists "helped" the attacks happen. He later apologized.
A mere 2 months after 9/11, the voters of Huntington Woods, MI passed a gay-rights ordinance (similar to the one neighboring Royal Oak had rejected six months earlier)-- but, alas, HW is a pretty liberal city by metro Detroit standards.
I'm not sure. Polls definitely showed a rise in sympathy with Israel and a drop in the proportion of Americans who believed aid to Israel should be cut. I'm not aware, however, of any drop in anti-semitism.
In some ways, 9/11 temporarily pushed us back to an earlier time. Patriotism was cool; traffic deaths went up, contravening the long-term downward trend in progress since 1969; yet drivers were somehow more courteous.
I do know that support for gun control dropped after 9/11, suggesting a greater embrace of conservative values generally. So, maybe.