It would still have been surprising in 1985.
Gallup has been tracking people's willingness to vote for members of various demographic groups since 1937 (!).
http://www.gallup.com/poll/3979/americans-today-much-more-ac...
http://www.gallup.com/poll/155285/atheists-muslims-bias-pres...
http://www.gallup.com/poll/183713/socialist-presidential-can...
They've changed the questions in the survey somewhat over time. (I'd love to see all of the historical data in this survey.)
If you think that any of these things is irrelevant to someone's being president, and you think the poll is accurate (so people don't overstate or understate their opposition to having presidents with particular characteristics), these are probably the numbers that you should be worried about if you hope people will focus on the "best person for the job". After all, lots of people in each year have told Gallup that they would be moved by these factors -- many of which you may see as irrelevant.