Since ancient times, the rulers have usurped the throne!

Through the twenty-four history books, the usurpation of the throne of the dynasty often occurred, such as Cao Pi's usurpation of Han, Zhu Wen's usurpation of Tang, Zhao Kuangyin's usurpation of Zhou, and so on. Although these people who plotted to usurp the throne were scolded, they would not spit on them for a thousand years, but there was one person who usurped the throne but was scolded for a thousand years, and this person was Sima Yi.
They are all usurpations of the throne by the dprang, and they are all unscrupulous, so why should they be treated differently? How could no one else be scolded so much, but Sima Yi was so ruthlessly scolded, sima Yi's heart was very puzzled.
Far from it, let's talk about Cao Pi's usurpation of Han, he is the closest to Sima Yi. On the surface, cao pi usurped Han and Sima Yi usurped Wei both, and there seems to be no obvious difference between the two, but in essence there is a clear difference, at least three points of difference.
First, who fought jiangshan
Emperor Xian of Han was able to continue to claim the title of emperor, which was directly and inevitably related to Cao Cao, and without Cao Cao, Emperor Xian of Han would not be an emperor. The reason why the north can be unified and stable is all the credit of Cao Cao, who has worked hard to fight down, not others.
Therefore, Cao Cao's son Cao Pi usurped the Han Dynasty, and the people were justified, and the rivers and mountains were all laid down by the old Cao family. But what about Sima Yi? This Jiangshan was not fought down by Sima Shi, but from the old Cao family, and Sima Yi directly snatched Jiangshan away, saying that it had become his.
Second, eating is too ugly
Although Cao Pi usurped the Han Dynasty, he did a good job of superficial kung fu, he was not usurping the throne, but Zen Rang, and it was Emperor Xian of Han who gave the throne to Cao Pi. Although everyone knows it, Cao Pi has done it without leaks, so that people can't find a reason to refute it.
But The Sima clan was different, Sima Shi directly killed the Cao Wei Emperor Cao Xian and directly robbed it, which was simply a bandit act, brazen, and very ugly to eat.
Cao Pi also made Emperor Xian of Han the Duke of Shanyang, allowing Emperor Xian of Han to spend his old age in peace, and Sima Shi directly killed Emperor Cao and never had any trouble, and the comparison between the two was very different.
Third, the impact is different
After Cao Pi usurped the Han Dynasty, it promoted the development of the State of Wei, making the State of Wei the most powerful of the three kingdoms, and the economy of the State of Wei was vigorously developed and very powerful. In contrast, in the Jin Dynasty, one word can sum up "rotten".
The Jin Dynasty made little contribution to Chinese history, except for Sima Yan, the Emperor of the Jin Dynasty, who was more powerful, and the other emperors of the Jin Dynasty were basically waste. What is even more infuriating is that the Jin Dynasty led to the Wuhu Chaos, which caused the Chinese nation to suffer, and the Chinese civilization was seriously damaged, and Sima Shi was a sinner of history.
To sum up, although Cao Pi's usurper of Han and Sima Yi's usurpation of Wei were both usurpers, the influence and significance were very different, and there was a clear difference between the two.
References: Romance of the Three Kingdoms, Book of Jin, Wei Luo, etc