We have to start at the bottom. But soften the top sufficient for that strategy to work. It's what progressives hve been doing for a while, and conservatives have been ignoring.
Get involved with local, city, state politics, start electing true libertarian/constitutionalist/fiscal conservatives to local offices, and it WILL snowball upwards, just look at what has happened since the late 60's and early 70's...how many local pols were able to move up to state, etc. and change the narrative and laws.
The more resistant the lower levels are at federal intrusion, mandates, and the more they stress responsibility, the harder it is for progressive federal efforts to succeed, and the easier it is for the election of national level folks that share a fiscally appropriate goal.