Thanks for this clever summary! Now there's no point in clicking the video /s

To be fair, that's not a particularly unusual end to xkcd What-If scenarios. The more interesting details are "how?" and "when?".

Certainly better than the one in my kitchen.

6 to 7 grams? No. 1/4 of a gram of antimatter reacting with 1/4 gram of matter is just about the right mix. That’ll be around 15 kilotons.

In fact, yes. Photons don't have a charge, so anti-photons would illuminate the Earth all the same. The issue, as the video points out, will come from too much energy hitting the Earth's surface, not too little.

EVIL antimatter sun that STEALS your light and heat