Free market myth?

John Rogerson's letter in today's Scotsman states:

The western free market, competitive economy is a myth, dispelled by the subsidies to oil, gas, the nuclear industry, bio-technology, drug companies, defence, transport and farming. There are also relocation grants and regional assistance.

Bruce Crichton, a target of Mr Rogerson, has, as Rogerson knows full well, written numerous letters to the paper advocating a totally laissez-faire economy in which there would be no "subsidies", "grants" or "regional assistance". Why don't socialists like Rogerson actually read some books about freedom?