It reminds me of Barli! My bernedoodle gets bullied at the dog park all the time. There’s a French bulldog there that intimidates all comers.
Attitude goes a long way. Some day they’ll run into the wrong big dog though. When I was a bouncer in Butte I heard, “the bigger they are the harder they fall” so many times. That was followed by a swift ejection out the door onto their face. I even open hand slapped a few to make my point and laughed.