There is a "risk" that bill Gates is actually an alien and has been putting microchips into the vaccine.

Pretty much all risks are identified within a short period, it's very rare for there to be long term risks.So yes there may be some theoretical long term risk, but it's soo small that it is misleading to talk about it as a serious risk. Expecially compared to the real and known dangers of Ivermectin and covid.