Europe was plagued by power games between religions and royal households. Both wanted to expand their power. The U.S. rejected both power structures.
Unfortunately, the President has some residual powers of a monarch, and the Christian Dominionists want to undo the separation of church and state.
A limited constitutional monarchy can be better than a full republic, if the royal family is popular and performs its duties well.
A republic has the problem of replacing the historical reverence for a monarchy with a reverence for a constitution. They don't necessarily have the same power over the imagination. In the U.S., many would be happy to redo, undo, or destroy the constitution for short-term gain.
Unfortunately, the President has some residual powers of a monarch, and the Christian Dominionists want to undo the separation of church and state.
A limited constitutional monarchy can be better than a full republic, if the royal family is popular and performs its duties well.
A republic has the problem of replacing the historical reverence for a monarchy with a reverence for a constitution. They don't necessarily have the same power over the imagination. In the U.S., many would be happy to redo, undo, or destroy the constitution for short-term gain.