I'd say this poll is worded to engineer a particular result. The exact question asked was:
“Would you support or oppose (your state) seceding from the United States to join a new union with (list of states in new union)?”Here are the sets that were offered:
- Pacific: California, Washington, Oregon, Hawaii, and Alaska
- Mountain: Idaho, Montana, Wyoming, Utah, Colorado, Nevada, Arizona, and New Mexico
- South: Texas, Oklahoma, Arkansas, Louisiana, Mississippi, Alabama, Georgia, Florida, South Carolina, North Carolina, Virginia, Kentucky, and Tennessee
- Heartland: Michigan, Ohio, West Virginia, Illinois, Indiana, Minnesota, Wisconsin, Iowa, Missouri, North Dakota, South Dakota, Kansas, and Nebraska
- Northeast: Maine, New Hampshire, Vermont, Massachusetts, Rhode Island, Connecticut, New York, New Jersey, Pennsylvania, Maryland, Delaware, and the District of Columbia
Given that choice, the following image should not be surprising:

Look at the numbers for Republicans in the West or Northeast. Look at the numbers for Democrats in the other three regions. As I've said before, this "solution" wouldn't actually solve anything; it would just shift grievances around slightly and create a new class of people who feel politically disenfranchised.