Hello and welcome. I can't answer your two questions, but I'll share with you a couple surveys I found, and enumerate some data I think is relevant.
http://www.pewresearch.org/fact-tank/20 ... aqi-kurds/1. "98% of Kurds in Iraq identified themselves as Sunnis and only 2% identified as Shias."
2. "In neighboring Iran, according to our data, Kurds were split about evenly between Sunnis and Shias."
mevs.org "Is Iraq falling apart."
1. "Reinforcing attachment to the nation rather than to the religion of Islam in politics is the fact that both the Sunnis and Shia (1) prefer politicians who are committed to the national interests over politicians who have strong religious convictions by at least a factor of 4 to 1, and (2) consider a good government one that makes laws according to the wishes of the people over the one that implements only the sharia by at least a factor of 3 to 1."
2. "The percentage of the Sunnis who strongly agreed or agreed that Iraq would be a better place if religion and politics were separated was 60% in 2004, 86% in April 2006, 80% in October 2006, 74% in 2008, 82% in 2011, and 81% in 2013. These values for the Kurds were similar to the Sunnis; 69%, 86%, 68%, 77%, 63%, and 75%, respectively. Among the Shia, however, support for secular politics were much lower, having an inverted U-shape; 44%, 42%, 60%, 63%, 62%, and 34%, respectively."
3. Iraqis were asked to choose between two definitions of a good government (1) one that implements only the law of the sharia, and (2) one that makes laws according to the people’s wishes. A great majority of the respondent opted for the second option. That is, 86% versus 14% among Sunni Arabs, 75% versus 25% among the Shias, and 91% versus 9% among the Kurds in the 2011 Iraqi survey demonstrated support for a secular rather than religious government.
4. Given the choice between the two statements that (1) it would be better for Iraq if more people with strong religious view held public office, and (2) it would be better for Iraq if people with strong commitment to national interests hold public office. Here again, national interest trumps religion, with 89% versus 11% among Sunni Arabs, 81% versus 19% among Shia Arabs, 60% versus 40% among Kurds in 2011 Iraqi survey showing support for secular politicians.
5. Americans have remained quite unpopuar in Iraq. Among the Sunnis, the percentage of those who did not wish to have Americans as neighbors fluctuated between 92% in 2011 and 99% in 2006; among Shia between 86% in 2011 and 98% in 2006; and among the Kurds between 46% in 2006 and 69% in 2011.
6. Iranians have also grown unpopular among the Sunnis, as the percentage who did not wish to have Iranians as neighbors grew from 72% in 2004, to 91% in April 2006, 97% in October 2006, and then dropped to 88% in 2011. These values for the Kurds were 53%, 46%, 84%, and 69%, respectively. Among the Shia Iranians were not as popular as might be expected. Those Shia who did not wish to have Iranians as neighbors fluctuated between 50% and 73% between 2004 and 2011.