Incorrect. UK has Tier 1 - Entrepreneur Visa where you can remain and run a company for 5 years. After 5 years, you can apply for extension for another 5 years or apply for settlement.
Yeah but the UK is not exactly an investment/entrepneur-friendly economy any more. Brexit, at the rate it's going, will be either a hard Brexit or a chaotic one, and without a soft Brexit (i.e. access to the European market) all a potential investor has is the British market.
Also, UK does not have a constitution and civil rights (e.g. right to privacy, to unrestricted, unfiltered Internet access) are being torn down further each day... so if I were an investor, no way I'd set foot in this country, much less invest in it.
Even before, there was no digital single market for services. The previous single market was only for manufactured goods. So that didn't affect startups in UK to be successful. We can expect the same after Brexit.
Right to Privacy is being eroded also in US with the new FTC rulings. So that is not a valid disadvantage.
Considering the recent events, Brexit if it ever happens, will be a Soft Brexit as the UK Govt doesn't anymore have the required mandate or support for a Hard Brexit that wrecks the economy.
