If your countrymen want to use Uber, Air B&B, Oracle, and Facebook, should you try to stop them from doing it, even if you personally dislike those companies?

You are making the same argument that Trump is making with the tariffs. Personally, while I can see some good arguments for protectionism, I'd rather have the choice to decide whether or not I want to buy Chinese products, rather than the government making the choice for me.

Closer to the point: having Uber in a place with a licensed taxi trade is basically the same thing as removing licensing and then granting a monopoly on one business to operate taxis.

So you two are on completely separate frames of thought. One party sees it as a matter of choice, the other sees it as removing choice because one party has a monopoly on avoiding the regulations.

The issue here is IMO more so that the taxi driver should be able to operate a taxi business without a license without having to go through Uber. Ultimately what is happening in a lot of places is the guys with medallions will basically use agents of the state to violently enforce their racket (which Uber breaks up, but then monopolizes), or alternatively in some places in Latin America the entrenched taxi drivers will simply shoot to kill their competitors that don't have cartel sanctioned 'medallions.'

I personally think that FB, Uber, RBNB, Oracle, Google, Amazon, and literally every american SASS should be completely forbidden from Europe. Period no discussion at all. Given the state of current America, given the reactions even on this very post that do not see how Cambridge Analytics has damaged the entire world - yes, I think it would be safe to put a good 10 year ban on every US web tech. It would fasten up Europe and leave out the important decision to someone who can actually make a difference instead of being washed out by some reddit / twitter with fake russian bots. Let the economics just move away and make the decisions for people who are in a state of hypnosis instead of playing with mass control and then calling it "freedom".

Keep your american movies and social networks please. Btw why is TikTok banned in US?

https://en.wikipedia.org/wiki/Predatory_pricing

Do some research on why these services are so attractive before you give your opinion on it being a good thing. What these companies are doing should be illegal under US law as well, but they have paid your president to make that issue go away.