ideological barrier(n = noun.cognition) - a barrier to cooperation or interaction resulting from conflicting ideologies;
is a kind of barrier, roadblock
has particulars: iron curtain, bamboo curtain, color bar, color line, colour bar, colour line, jim crow

barrier, barrier island, barrier reef, barrier strip, blood-brain barrier, crash barrier, great barrier reef, heat barrier, ideological, import barrier, junction barrier, language barrier, movable barrier, sonic barrier, sound barrier, thermal barrier, trade barrier