By having their membership in a hammerlock monopoly in policy-making positions within the Federal Government as they have had for the last half-century. This is a fact, easily researchable on the internet, and something that the "the CFR is just a think-tank/debating society" crowd has never addressed. Such a monopoly, cutting across party lines as it does, should be cause for concern, as the premise behind the "think-tank/debating scoiety" has been/is now/always will be the implementation of a global government, something which should be anathema to any conservative...
the infowarrior
http://www.mega.nu:8080/ampp/roundtable/CFRA-Elist.html
Just take a look at the membership list.
People in high places doing their lil part to further policy little by little in an effort to advance a globlist agenda.