Nationalism. As Manifest Destiny was geared towards more of the individual people's growth (i.e go-getters) compared to Nationalism; the growth and advancement of the nation's people's as a whole.
I think that the reason why Federal Government attempted to return domestic policy back to the states is because of efficiency.
It is more efficient to delegate powers to the states to deal with issues and conflicts within the states because state leaders can see firsthand on what these issues are and can immediately propose and act on solutions to resolve these issues.
There are 52 states in the U.S. of A and the Federal Government can only decide on laws that can be good for all. They can't individually monitor these states to see whether the laws are implemented as it should be. Thus, they need to delegate powers to the state to act in their behalf at the same time acting for the benefit of the people living in the state.
The answer is Katana and Shuriken.
Satan uses our 'fleshly weakness' to lead us into temptation. The first temptation Jesus faced in the wilderness was 'the lust of the flesh'. Just as it was then, in today's world this is the desire of material things such as food, clothing, money, etc. instead of trusting God for our provision of these things, specifically the 'spiritual food's that only God can give!
Its either the fist option or the second option, try the second option.