Browsing shrubs is so undervalued/underappreciated by many UK livestock producers. The stock love it and it has huge nutritional benefits.
It is here too. They want to eradicate all that browse and use herbicides on their land to keep them gone~which only works sometimes~rather than work with them and use hair sheep or meat goats to keep them in control. Most farmers here want the easiest and most heavy hitting approach they can use on these invasive species of shrubs. If one mentions using them for their feed value they get pretty irate that anyone would do that and thinks everyone should be working actively to kill them in any way possible.
Two of our most invasive species here in my state have a higher protein value than any legume we could ever plant, plus the benefit of micro-tannins, so it's a little short sighted to not utilize them if given the chance to do so.