I suspect that Obama’s victory is a sign that we’ve been ready for a black president.
I think candidates may have not won because of racism, but I don’ think a president gets elected because they’re black. Obama won because he was the strongest candidate and racism is weak enough that it is no longer a factor.
Likewise, I think the country is clearly ready for a woman president. Clinton came close to winning the Democratic nomination, and the both parties have now had a woman as a vice-presidential candidate. We got our first black president instead of our first woman president merely because Obama was the stonger candidate; not because the country isn’t ready for a woman to be president.