I'm all for the proper treatment of animals. I live on a ranch with a herd of horses.
That said, if my neighbor was mistreating their animals I would call some authority like the sherriff or the USDA to deal with it.
I have neighbors who would shoot you where you stood if they caught someone rustling their cattle without a second thought or a challenge of why. You would be too dead to explain that your intentions were noble. The law would scold them then give them a nod and a wink and a pat on the back to boot.
Do not try to rescue animals from a farm or ranch or even your urban neighbor's back yard. You are basically asking to be shot.
Get John Oliver to do a segment on it to be more wide-reaching.
[1] - https://archive.ph/6bptx
If this is accepted, the problem is going to come when SPCA or someone decides to push a much broader definition of "cruelty" than everyone else had in mind when they accepted this as being a reasonable idea. From that will come anything from lawsuits to gunfire.
Or is it one of those words that we're all going to tacitly agree should never get approached too closely, for fear that some people might end up on the wrong end of the definition?