Why did americans accept the constitution, with its strong national government and powerful executive, after, only a decade earlier, violently revolting against similar british institutions? why did the anti-federalists not violently oppose the new constitution?

it may be said that British institutions were the state legislature and governors,that is to say there was not a national government of America before its independence. Every colony was independent , except for oversight which the UK government could not enforce low taxes because of it weakness.