3. The potential for severe problems with the power grid and other electronics is very real.
I don't know for sure, but I read the apocalyptic talk in the OP as a tongue-in-cheek nod to extremism while its thrust was on the realistic potential for harm that your post confirms.
...Known as a coronal mass ejection (CME), these solar explosions propel bursts of particles and electromagnetic fluctuations into Earth's atmosphere. Those fluctuations could induce electric fluctuations at ground level that could blow out transformers in power grids. The CME's particles can also collide with crucial electronics onboard a satellite and disrupt its systems.
In an increasingly technological world, where almost everyone relies on cell phones and GPS controls not just your in-car map system, but also airplane navigation and the extremely accurate clocks that govern financial transactions, space weather is a serious matter.