There are few businesses I loathe more than United Airlines.
They are a shitty, shitty company and just about every experience I've ever had with them has been a bad one. I stopped flying them because they lost my luggage twice in four flights and were unbelievably shitty to me as I attempted to get it back. Then, after nearly a decade, I finally flew them again. Not only did they lose my suitcase right out of the gate and treat me shitty for it... they then charged me to check it back home, even though I never got to use it my entire trip.
I detest these fuckers. Absolutely detest them.
Which is why I experienced zero shock when I saw that they had forcibly removed one of their paying customers from a flight they overbooked...
Now... before we go any further...
Most all airlines overbook their flights whenever they can.
The reason being is that they know that a certain number of people will cancel flights or change their ticket or arrive too late to make their flights or whatever. They're just trying to make sure that planes go out full, because that's what needs to happen for them to make money.
It's for this reason that I heavily advocate getting a seat assignment in advance and checking in for a flight the minute you are able to do so. That way, you're all set in the event that a flight is oversold. It will be somebody who didn't get a seat or check in early that gets left behind in an oversell situation (assuming the airline can't get volunteers to take a later flight).
Or so I assumed.
From the looks of things here, the guy had his seat assignment. So I honestly don't know what's going on. If United knew they needed crew on the flight, why didn't they handle this fiasco before boarding took place? You simply do not remove somebody from the plane like this. If you oversell a flight, you deny the person who didn't get a seat assignment and then lavish money and gifts on them out of compensation... before boarding.
But this is the fuckers at United Airlines we're talking about, and so...
...not a big surprise that this is how they decided to handle the situation.
United Airlines Hates You.
And guess what? Every time you fly with this heinous shithole of an airline, you're empowering them to keep hating on you... along with every other person flying with them...
Find a different way to fly.