Unlike the other examples, this one doesn’t really fit the pattern: it’s “X is like Y” and not “X belongs to category Y”. The difference is that “X is like Y” does not sneak in any connotations; it’s well understood that “The War on Drugs is Prohibition” is a rhetorical way of saying “The War on Drugs is very similar to the Prohibition of the 1930s”.
“Affirmative action is like hanging people just because they’re black!” doesn’t carry the same sneaky rhetoric as “Affirmative action is racist!”
Unlike the other examples, this one doesn’t really fit the pattern: it’s “X is like Y” and not “X belongs to category Y”. The difference is that “X is like Y” does not sneak in any connotations; it’s well understood that “The War on Drugs is Prohibition” is a rhetorical way of saying “The War on Drugs is very similar to the Prohibition of the 1930s”.
“Affirmative action is like hanging people just because they’re black!” doesn’t carry the same sneaky rhetoric as “Affirmative action is racist!”