If you want roads as metaphor. Here it is: Roads profit those who are based along the road. A road between cities A and B profits those living and doing business in A and B more than anybody else living in a third city which is not connected to the road. That is just a matter of fact not a deliberate design decision to exclude someone.
The Horizon research framework exists to make it easier to form research projects across a set of countries. Everybody from a thirdparty country is at a disadvantage. But that is not because they, somebody in Brussels, wants to exclude someone. It is because the thirdparty country didn't put in the work to align it's local rules to the rules of the treaty.
The Horizon research framework exists to make it easier to form research projects across a set of countries. Everybody from a thirdparty country is at a disadvantage. But that is not because they, somebody in Brussels, wants to exclude someone. It is because the thirdparty country didn't put in the work to align it's local rules to the rules of the treaty.