I don't know the answer to that. Some democrats appear to not have America's best interst in mind, and some republicans seem the same way. Perhaps some Americans consider themselves members of the overall human community ahead of citizens of this country. I don't know what their motivations would be.
Perhaps you can find answers about CFR here: http://www.cfr.org/about/
The bottom line is that I don't think being a member of the CFR equates to being a global dominionist out to destroy the sovereignty of the US.
OK.
Let me ask you, would you become a member of an organization that had active members involved that did not have America's best interest in mind?