Under that basic premise of a constitutional republic with a national government of limited, enumerated powers it should be irrelevant what they want.
Of course the politicians and bureaucrats in Washington want more power and authority. That is their livlihood. What's important is to realize that they want it, and will use any available means to get it. Consvervative political activism means actively opposing their attempts to assume power and authority that were not legitimately granted to them by States, either in the Constitution proper, or by amendment.
This creates an imbalance with the major corporations. They have national and global reach these days yet you want to keep the Feds in the same puny state that corporations were in 200+ years ago. This is very unnatural and will not happen because the Feds want to be competitive with major global corporations
Just giving you grist for your mill
Read “The Great Reckoning” for more in this vein