It would not suit their tastes nor fit in with their ideas.
What is good for one nation is not necessarily good for another.

Each system of government has its good points, provided that they are faithfully and justly carried out.

The aim to secure the happiness and comfort of the people and to promote the peace and prosperity of the nation should always be kept in view.

As long as these objects can be secured it does not matter much whether the government is monarchial, republican, or something else.
It may pertinently be asked why China has become a Republic, since from time immemorial she has had a monarchial form of government.

The answer is that the conditions and circumstances in China are peculiar, and are different from those prevailing in Japan and other countries.
In Japan it is claimed that the Empire was founded by the first Emperor, Jummu Tenno, 660 B.C.and that the dynasty founded by him has continued ever since.