I can see why Clarkson is liked by farmers, but he said himself he bought that land as a tax dodge. The farming thing is just a convenient way to keep himself in the spotlight, while avoiding tax.
I'd rather get my understanding of the problems in farming from people like Wendell Berry, James Rebanks and Helen Browning who are actual multi-generational farmers who understand the importance of rural communities whilst also having a balanced understanding of the good and bad farming does.
Politicians are generally urbanites who look down on rural communities, but Clarkson, along with Farage and the other front of march populists, is an opportunist.