The interview has been at least looked at by more than 200 million people on X:
Some estimates claim that more than 1 billion people have seen the interview worldwide.
Assuming that 200 million people have seen it in Europe and USA, let us calculate what fraction of the adult population is that assumed count.
Here we get the adult population in European Union:
EntityClass["Country", "EuropeanUnion"][EntityProperty["Country", "AdultPopulation"]]
(* Quantity[5904040, "People"], Quantity[7419096, "People"],
Quantity[4378321, "People"], Quantity[2594084, "People"],
Quantity[865181, "People"], Quantity[6679000, "People"],
Quantity[3721314, "People"], Quantity[839198, "People"],
Quantity[3414592, "People"], Quantity[39559950, "People"],
Quantity[53345150, "People"], Quantity[6625666, "People"],
Quantity[6313949, "People"], Quantity[3254096, "People"],
Quantity[37717004, "People"], Quantity[1176046, "People"],
Quantity[1789792, "People"], Quantity[443312, "People"],
Quantity[358182, "People"], Quantity[11296629, "People"],
Quantity[25204354, "People"], Quantity[6595548, "People"],
Quantity[12573147, "People"], Quantity[3643941, "People"],
Quantity[1363006, "People"], Quantity[31336726, "People"],
Quantity[6508618, "People"]} *)
% // Total
(* Quantity[284919942, "People"] *)
Here we get the adult population in USA:
Entity["Country", "UnitedStates"][EntityProperty["Country", "Population", {"Age" -> "Adult"}]]//Round
(* Quantity[200484607, "People"] *)
Here we add the two counts together in order to get the total adult population in West:
%% + %
(* Quantity[485404549, "People"] *)
Here we find the corresponding ratio with the assumed number of interview views:
200*^6/% // N
(* Quantity[0.412027, 1/("People")] *)
So, more than 40% of the adults of "the West" have seen the interview. (Or at least looked at it.)