In my belief, there are really 2 primary purposes of the federal government. 1 is to protect us from others foreign and domestic. The other is to protect us from government, at all levels.
For the federal government to fail to protect us from others is bad. For them to fail to protect us from governments is catastrophic. For if the government has no respect for our rights, who will?
For the feds to do other things is right and good, within reason. However, if it gets to the point that the 10th Ammendment becomes null and void, that’s wrong.