But the kicking out colonial masters part is clear. The fascinating the US economists of the early/mid 1800s explaining this policy very clearly.

Here's James Madison in 1815

However wise the theory may be which leaves to the sagacity and interest of individuals the application of their industry and resources, there are in this as in other cases exceptions to the general rule. Besides the condition which the theory itself implies of reciprocal adoption by other nations, experience teaches that so many circumstances must concur in introducing and maturing manufacturing establishments, especially of the more complicated kinds, that a country may remain long without them, although sufficiently advanced and in some respects even peculiarly fitted for carrying them on with success. Under circumstances giving a powerful impulse to manufacturing industry it has made among us a progress and exhibited an efficiency which justify the belief that with a protection not more than is due to the enterprising citizens whose interests are now at stake it will become at an early day not only safe against occasional competitions from abroad, but a source of domestic wealth and even of external commerce.