Obama being first black pres is easily cancelled out by Hilary being first female pres and there's a whole lot more women out there than black folks.
The lie that Obama won because of the black vote is a lie.
2012 exit polls had Obama getting 93% of the black vote, 2008 he got 95% of the black vote (whoops) 2004 ultra white John Kerry got 88% of the black vote, 2000 AL Gore got 90% of the black vote. What you and the other people who point to race are not acknowledging is that Obama trounced his opponents in all races. While Bush held around 40% in Latinos and Asians, McCain and Romney slipped in both of those McCain carrying about 30% in latinos and 35% in asians and Romney at about 30% latinos and 25% asians. While it's worth it to note, Romney carried more of the white vote than Bush did in 2000, if you don't think that's a clear disadvantage for Obama than well, I don't know what to say.