From the study here:
"[A]nti-atheist sentiment is persistent and durable, still higher in 2014 than for all other groups except Muslim Americans. ... While Muslims have surpassed atheists as the least-accepted group, Muslims and atheists still receive the most negative evaluations compared to all other groups in 2014, as they did in 2003."
You have to do the math from table 2, which is a job sociologists apparently won't do, but here's the growth in the share saying the group shown does not agree with the respondent's vision of American society in the last decade:
Whites: +364%
Blacks: +267%
Jews: +138%
Asians: +134%
Hispanics: +125%
Recent immigrants: +105%
Conservative Christians: +97%
Muslims: +73%
Homosexuals: +30%
Atheists: +5.8%
Where's the huge increase in antipathy toward whites and blacks coming from in the last decade?
Asians recently represented the fastest growing minority in the US at 3.4% year over year, followed by Mixed race at 3.1%, Hispanics at 2.2%, Blacks at 1.3% and Whites at 0.5%. "The distinction of being the fastest-growing racial/ethnic group in the United States has alternated between Asians and Hispanics in recent decades", Pew Research said in 2014.