Popper's critique of the philosophical doctrines underlying totalitari
an ideology is powerful. Yet, having the regimes of Hitler and Stalin
in full view before him, he did not give full and balanced considerati
on to the range of effects these doctrines on have within actually exi
sting ideologies and regimes. The ideas he correlates with totalitaria
nism can and do exist in benign forms or tempered by other ideas and b
y institutions. Moreover, the struggle with totalitarianism is only pa
rtly a struggle of philosophical ideas. Political argument and rhetori
c appeal to feeling as well as intellect. This tends to be a blindspot
of liberalism that often weakens it in the competition with its adver
saries.