Stock investors fleeing Donald Trump’s whiplashing of global markets this year – from January’s Greenland fixation to his unleashing of war in Iran with Israel – have found few places to hide.However, an unlikely refuge has emerged: Europe’s long-struggling telecoms sector. And at its heart is Vodafone, one of the sector’s biggest underperformers of the past decade.The revival goes beyond telecoms merely being a safe haven during geopolitical turmoil.The sector is also seen as being “largely immune” to disruption from artificial intelligence, according to JP Morgan analysts in a recent report. It may even benefit from problems in recent months...