I'm convinced that the federal government doing more and more things is the root cause if the increasing toxicity of American politics. The further removed a populace is from their representatives the less control they have and the worse they feel. Everything should always be done at the most local level that it is possible to do it. Some things have to be done at a relatively high level, but Americans have increasingly been jumping straight to "this is a job for the federal government" when very often state, or even city governments in some cases, would be perfectly capable.