Nice summation. There are infrastructure items that should by and large remain the remit of the state, health care, education, transport infrastructure, electricity grid, water, would all be on my list. When it comes to making goods to sell to consumers, i.e. cars, best leave it to the private sector. My only caveat about private enterprise is that the aim should be a level playing field rather than a free market, that is some country that lacks workers rights and environmental protections shouldn't be able to take advantage of that to undercut our homegrown industry.