The vaccine doesn't make you sick. The vaccine may induce an immune response that may make you feel sick as many of the unpleasantness we feel when we are sick is due to our immune system fighting the disease. It's the disease that is actually the sickness. No live virus = no sickness. You may "feel" sick but you're not. I have asthma and will get the vaccine as soon as I can.

Another way to think of this is: Maybe the left is hoping that Conservative Republicans are so stupid they won't take the vaccine. The left will be protected but the right's numbers will drop due to their own paranoia and ignorance. We're now at about a 50/50 split in this country if they can make it 60/40, they'll never lose.