I mean, I get it, if it's encroaching on other passenger's seating arrangements. But, then, shouldn't the lawful course of action be, petitioning their governmental leaders in charge of subway seating regulations, to either: Widen the seats, generally, so that someone bigger than a 14 year old girl can actually sit in the seat, or Segregate the seating, have Men's Seating, Women's Seating, and Other. The Men's Seating would be larger, and more comfortable, like 1st Class in an airline. With plenty of room for Manspreading, and not having to offend anyone, doing it. Of course, it would be a jail-able offense, for a Woman to sit in the Men's seating area. Likewise, it would be legal for a woman to breast-feed in the Woman's section.
Edit: Just goes to show you, SJW is a mental illness. I can't wait for it to be added to the DSM.
Edit: To elaborate, this really isn't much different than a gang member, hanging out at a gas station, and then shooting an innocent passer-by / customer, because "they look at him funny".
So-call "Manspreading", is a natural biological thing. That this woman perceives it as an aggression against her, somehow, is a delusion, and then she takes it one step further, like the gang member, and acts on that delusion. THAT is why, being an SJW should be a jail-able offense. She's clearly a danger to the people around her.