British
the anti federalists were afraid that a federalist government would take the individual rights away from citizens and they thought that a central government was a step towards tyranny
During the American Revolution, France supplied the new American government with money (gold and French Francs), soldiers, and the French Navy. After the Americans defeated the British at the Battle of Saratoga, the French realized the American colonists could defeat the British regulars, and that helping the Americans would potentially weaken their hated British rivals.
They were worried that the government would put restriction on the slave trade. Apex
The great thinkers from the Age of Enlightenment were concerned with how people were capable of self government. Self government is not without government and if people are capable of governing themselves, they are certainly capable of forming governments (artifices), to establish Justice, ensure domestic Tranquility, provide for the common defense and promote the general Welfare of the self governed. From John Locke, to Adam Smith to Thomas Hobbes and Thomas Paine, the great thinkers of the Enlightenment were concerned with how people would be with government. From Thomas Jefferson to Benjamin Franklin, from George Washington to John Adams the great thinkers of the Age of Enlightenment were concerned with how governments should be with people.
rephrase your question, and I'll give you an appropriate answer
British
Because they were concerned that their French language and culture would not survive in a country with more English-speaking people than French.
Federalists were concerned that a strong national government must exist. They believed without a strong national government anarchy would triumph.
Government
It would depend on which country you are referring to.
This was the time of the French Revolution. The Americans had just finished a war and were starting to build a country, France needed military and financial help which America was not able to give. It is debatable whether America would have helped the French Government of the Revolutionaries attempting to overthrow the government.
A federal government is usually led by a president. However it would depend on the legislation of the country concerned
Yo Mama Did This
The Americans understood very well why the French wanted to have a change in their own country. Because the French had helped America fight in their revolution, America was freed from the UK government and got their declaration of Independence. When the French troops returned home and started revolting against their own government as well, the Americans understood very well the cause of it and at first supported it, but only until it became clear to the Americans that the French were using horrible violence and were actually planning on dethrowning and killing the King and Queen. When the Americans got wind of that, they stopped their understanding instantly since they could not agree with such radical and violent plans. Especially not, since King Louis XVI had sent the French troops to America to help fight against the UK! How could they support a country that wanted to rid itself from the French King who gave the Americans the ability to be independent? They were very grateful to Louis XVI and they started to sympathize with him.
The French hated England, and would do anything to see them fall.
The Americans would loose terribly and we wouldn't have freedom from the British.
They feard of how the would survive