According to the GSS, blacks are both more likely to commit adultery and more likely to morally condemn adultery than members of other races are. Asians, in contrast, are less likely than members of other races to both commit and to condemn adultery.
At first blush, these results may seem contradictory, but that’s not the right way to think about it. Beliefs and behaviors are not the same thing. Wency explains:
Hypocrisy in sexual ethics (or in behaviors relating to any particular form of temptation) is not an indication that someone is lying about their values, just that humans are fallible and that resisting temptation is hard.
I could also ask, “Is it ever a good idea to eat an entire sleeve of Oreos at once?” and would probably get mostly negative responses, even though almost everyone has done this or something similarly foolish at least once in their lives, and will probably do so again.
People differ in their capabilities to resist being led into temptation and in their abilities to be delivered from evil. The following graph shows the percentages of people who have committed adultery and yet maintain adultery is “always wrong”:
Even among cheaters, the consensus is that cheating is wrong. The only significant deviation from that line of thinking is among lavenders, where open marital relationships are common.
GSS variables used: XMARSEX(1)(2-4), EVSTRAY(1), RACECEN1(1)(2)(3-15), HISPANIC(1)(2-50), SEX, SEXORNT(1-2)(3), PARTYID(0-1)(2-4)(5-6)