small government and self-reliance are pretty standard republican platform item. criticize that if you like - I know I sure do - but it's hardly inconsistent or surprising.
Cutting public infrastructure like sidewalks prevents self-reliance — it’s saying that anyone who isn’t able-bodied and affluent enough to afford a car doesn’t belong in the community. If, instead, you provide things like accessibility, public transit, etc. millions of people can actually contribute to society rather than being dependent on charity.