Those are not proofs of indoctrination infeasibility, just that in US religious indoctrination isn't working anymore. I believe it is mostly because schools and

Those are not proofs of indoctrination infeasibility, just that in US religious indoctrination isn't working anymore. I believe it is mostly because schools and parents became more secular and unreligious. Same happened with ideological indoctrination in USSR 1980s. On the other hand, left liberal indoctrination works fine in US right now, as we can see. Same with imperial indoctrination in today's Russia.