Uber loses licence to operate in London, will still operate while appealing

I'm not a fan of companies like Uber or AirBnB who attempt a violent takeover of a market. However, as a consumer who needs to get from A to B, or stay at some random city, I find those services invaluable. The black cabs in London are expensive, never around when you need them, and until recently might have refused card payments (now they just seem unhappy about it). At the very least I was hoping Uber would make that industry wake up and join the modern world, but instead they chose to protest and block roads. With Uber, I always have a car available within minutes and the prices are reasonable. I just hope that the competition will take their place (and driver mass) if they do end up leaving.

> who attempt a violent takeover of a market

What is a "violent" takeover? What would a nonviolent takeover be?

I'm all for new companies providing better services to consumers. If they take over a market, isn't that because the existing market wasn't meeting consumer needs? A new company taking over a market is generally a good thing, the creative force of capitalism itself.

(Provided it's not done by ignoring legitimate standards for safety, environment, externalities, etc.)