Tough to get the whole picture in that video, but it looks to me like the fielder touched 1 to put the batter out before she got there and then was going to try to make a play at home but the batter was having none of it. Was there a safety base at 1? Batter definitely lowered shoulder, which in and of itself should be enough to warrant the ejection for malicious intent.
If I was the ump (and I am NOT an ump), she's ejected, coach is ejected (not sure if that part is automatic, but I'm going to assume the coach is going to argue and not let up), and her parents are ejected (because they are sure to be loud-mouthed yahoos who will be not stop when asked to quiet down...plus I felt this needed one more parenthetical).
If I was the ump (and I am NOT an ump), she's ejected, coach is ejected (not sure if that part is automatic, but I'm going to assume the coach is going to argue and not let up), and her parents are ejected (because they are sure to be loud-mouthed yahoos who will be not stop when asked to quiet down...plus I felt this needed one more parenthetical).