Earlier quoted context omitted.
Flying is just too cheap ;) It's easy to say, but if you look at the environmental impact, it really is too cheap. If airlines would pay the same tax on fuel as cars and were expected to compensate for their pollution, they'd be a lot less attractive.
CO2 analysis of train travel needs to take into account the cost (and emissions) of building and maintaining the rail network. The other factor is that air travel is consistently profitable in the EU, without subsidies. But the reverse is true of rail. The simplest solution is just to impose a $100/ton carbon tax, and let the market figure it out. But EU bureaucrats seem intent on socialism and planned economies inst…
Socialism isn't really a dirty word in Europe (or anywhere else in the world) like it is in the USA. 20% of elected representatives in the EU are socialists.
So it's less "EU bureaucrats intent on socialism" and more the European zeitgeist.