When reading Marx please keep in mind that not only did he write in German, which has been translated… but if you have read his works he often heavily utilizes foot notes to explain what he means be certain things and at times will take an entire section building up an argument that is later summarized into a more concise statement. My first reaction to “dictatorship of proletariat” was negative, but reading more about his meaning is important.
Did Marx get some things wrong, sure however, while I will never say “everyone has to read this” I will say that “everyone who wants to oppose Marx should actually understand it to a level that probably requires reading”