You are correct that there are many devices and plenty of examples of infrastructure that is hardened against such things- but it’s just plain wrong to assume it wont be a major problem- Multiple studies have found the damage caused by a solar storm equivalent to the 1859 example would cause trillions of dollars of damage and a lot infrastructure would be down across most of the 1st world for at least months if not years.
It would probably also trigger a lot of violent outbursts from populations around the world, probably a lot of mostly peaceful and fiery looting, riots etc.