I'm not even sure what the hell is going on in this one:
...what?
*ahem* My extensive research and experience with conspiracy theories will allow me to decipher this for you.
Bill Gates was the founder of the computer company Microsoft, so he is represented by a robot. More specifically, a Terminator robot, which is an assassin. This is meant to draw a connection between Bill Gates and a cold-blooded, murderous nature.
In one hand, Gates is carrying a massive gun that is fashioned to look like a vaccine. This is an obvious reference to anti-vaxxer conspiracy theories. A part of Gates' philanthropic efforts involve sending vaccines to third-world countries. Considering that the comic claims Gates is a proponent of reducing the world population, and that anti-vaxxers consider vaccines to cause a host of symptoms from autism to sterility, the implication is that Bill Gates' foundation is sending vaccines to third-world countries in order to make them infertile and reduce the world population, all according to the Big Pharma eugenicist agenda (as shown by the big "MERCK" letters on the syringe).
The device in his other hand is probably some sort of scanner or taser. It could be a reference to the pat-downs and X-ray screens at TSA checkpoints, which have been accused of being a government conspiracy to humiliate citizens and give them cancer and sterilize them at the same time. Also note that the device is situated directly on the helpless man's testicular area, which also shows that whatever it is it is being used to sterilize him with its "radiation" or "electromagnetic fields."