Generally speaking (although I think it was a meeting rather than a protest having now spoken with an attendee), most of the farmers there would have been for the tighter protest laws and think welfare's for scroungers. Irony.
Most 'successful' farmers now have sucked at the teat of redistributed state finances for a long time now, and what's more, used them to expand by buying up the smaller family farms surrounding them and made money by being able to operate at scale on tighter margins thanks to cheap energy, making plenty of money for the agricultural sector, supermarkets and middle-men in the process. Very few of these aren't cockwombles of the first order. I have absolutely no sympathy for these guys, especially as gaping cracks appear in their business models as cheap labour and energy become more scarce. Yanno, the one where 'I've two-thousand acres of raspberry monoculture to pick - how can I do that profitably on my own?' gets rolled in front of the BBC cameras. I do have time for the small farmers that are hanging in there though, and I don't think it's in our interest to have our food production consolidated in a few massive Corporate holdings, pretty much writing legislation themselves.
Imo the problem's systemic, and we don't pay enough for our food (suits property market, consumer good producing industrialists and service sector), and a lot of what we do pay to supermarkets doesn't reach the farmers as their business model tends to be very low margins on corporate processed, high on the basics and maybe in-house processed.
It appears there were political canvassers from both left and right there last night. Whilst there were a couple of particularly poo arguments : that if Wales reduces output by 10pc(tree cover), then Brazil will gladly chop that down and send the food over and we've just exported the problem; or the classic -why can townies cut there hedge at any time and we're restricted?. There are also ones that may be sound - eg. that the new regulations fail to address the large variations in geography, or terroir, of Wales, giving four years to establish a hedge, even for hill farms iirc.
Tell them to 'koff and keep their filthy townie money for their local pub landlord or in case someone out there needs a yacht. Trouble is, most of the small farms that have been hanging on may well end up in some corporate portfolio. Lose-Lose.
Should nearly all be small farms selling locally. People should value food more.