I think that on balance most farmers care deeply for the environment and where realistically possible, manage their land sympathetically. Most of the arable land around here is under Environmental Stewardship schemes wherby stuff like new hedges are now being planted again as well as wider margins around fields and along water courses being left uncropped to create more space for wildlife as well as protecting water courses. Much of this is done voluntarily as well as through such programmes. Some schemes also create permissive public access too.
All is not perfect of course, but the suggestion that all farmers are evil, slurry spilling so and so's is frankly a myth.
Perhaps farmer's biggest problem in recent years has been that of poor communication with the public leading to a bit of an image problem. Farming can be a lonely, isolated job of course and tends not to attract many extroverts with brilliant PR skills. This has meant that the public no longer have much of an understanding of farming and why things are how they are. But hopefully stuff like the brilliant annual Open Farm Sunday and more farms like
this one welcoming folk to see what's on the farm will help change this.