Because they're in a crowd, a really densely packed crowd. They might see that the crowd up ahead of them has slowed down but the people ten, twenty or a thousand meters behind them haven't. So the guys behind them keep pushing forward, and if you try to stop you'll be knocked down and walked over yourself. That is if the pressure of the mass of bodies doesn't crush you to death.
Add panic to that, even if only a few people do, and you've got a recipe for disaster.
Chances are your elected representative thinks 'free trade' is an excuse to berate poor countries into enforcing punitive IP agreements. They have to answer to their political masters, political lobbyists.
And puritanical. However I think in some case we should ban sex-robots. I think if they're just a machine, without any self-awareness then I don't have a problem with them. If however a sexbots are sentient, even to a limited degree then making them is nothing more than sexual slavery. Much as Charles Stross and Greg Egan have pointed out. The trick will be how do we determine if a robot is sentience, and at what level do we say no more.
I also think that in the near future anyone with sexbot will be considered a bit of a fuck up, unable to manage even basic relationships with the opposite sex.
If that we're true, then the media would have no hesitation labeling hate crime committed by white guys as terrorism. I see a lot of mass shootings shot up in the states by white nationalists, using Christian ideology to justify their actions against women, African Americans, and Jews.