I’d go so far as to say I think anyone peddling horseshoe theory is a politically illiterate fool regardless of their supposed qualifications.
It’s funny that you want me to read the imitation though.
“ Several political scientists, psychologists, and sociologists have criticized the horseshoe theory.[3][4][5] Proponents point to a number of perceived similarities between extremes and allege that both tend to support authoritarianism or totalitarianism; political scientists do not appear to support this notion, and instances of peer-reviewed research on the subject are scarce. Existing studies and comprehensive reviews often find only limited support and only under certain conditions; they generally contradict the theory's central premises.”