You resort to being rude because you failed to understand how to work something out, and tried to make it look way worse than it was. Then you shift the goal post and start using a car that does 50-60MPG, which by the way is still 3x more expensive. 150 miles would cost ~£17-18, and the electricity would be ~£5.70.
So if you "personally" don't think something that is 300% more is expensive for the same outcome, then fine but to most people a 300% increase would be seen as a lot more.
Lets stick with what you said at first shall we? £44 for 186 miles, that would be less than £8 of electricity cost when charged at peak/normal rates, around 53kWh worth. Now to me that is 5.5 times less, or your car costs 550% more to fuel for the same distance. Worked out over the total 20,000 miles (this lease covers) you car would cost approximately £4731 in fuel, where as the eGolf would be approximately £850.
So we'll stick with your doom mongering ways of the battery failing, which is warrantied for 100,000 miles or 8 years. Using your car as an example those 100,000 miles cost you ~£23,655, but you could have saved over £19,500, since the electricity would have been ~£4,250.
Now I don't know about you, but I reckon by the time I had done 100,000 miles, or had the car 8 years the savings alone would pay for an entirely new vehicle, never mind replacing the 'dead' battery.
Should you want to actually learn some facts about BEV's there are plenty of knowledgeable people on these forums, and lots of places around the WWW that could help you.