did someone find all medias from UK have strongly hostile attitude to Tesla and Elon musk, eg reuter the economist...
I don't know a lot about the culture at Reuters, but it was founded by a German émigré. While its headquarters are in London, its current ownership is a Canadian corporation with HQ in NYC. In other words it's global, like so many organizations.
The Economist Group has significant ownership by British, German, and Italian interests. The magazine has a clear editorial bias, and doesn't try to hide it. In this case I think the article was tilted against Musk because of questions about corporate governance. This is basically the "Musk is bailing out his cronies at SolarCity" perspective. From the article:
Musk Inc also carries echoes of Asian and Italian business federations, which pool resources and people: SolarCity uses batteries made by Tesla, for example, and SpaceX has made loans to SolarCity. Mr Musk is the chairman of all three firms, which share some directors. His cousins manage SolarCity. Fidelity, a big asset manager, owns large stakes in each of the trio.
The Economist deplores this kind of thing, preferring transparency and independent governance. That might be a British bias: fair play and all that. And if Tesla and SolarCity were mature, profitable companies I'd agree. But today an investment in Tesla is a bet on Musk. You either let him get on with it, or you sell up and invest in something else. For myself I'm long TSLA, so I voted for the merger.