Don't get discouraged by being in the minority in one particular forum, specially when specific angles dominate.
People put different weights to different arguments.
For the Spain argument below. I actually think it's quite uncomfortable to be +1 and +2 in daily life because people leaving office at 5pm are actually leaving at 3pm under scorching sun. The difference of having light until 23 instead of 22 is negligible in a country that is still up at night in winter.
I can't cite anything at the moment but from what I can recall, economic benefits of switching during the year have not been as tauted and the cost of changing every year has been harmful in many ways (operational being one), but I think here the discussion is where should countries land.
I hope that a country like UK doesn't decide to switch to +1 and the same for Europe, further separating themselves from the American continent countries with the focus on summer sunlight where summer already has a huge window of sun and people often tend to want to escape that heat.
Yes, once you look at the daylight times it's clear that UK time naturally fits Spain better.