This position leads to inevitable follow up question: if vaccination reduces only personal risks, and does not prevent infection spread, why forcing it on anyone? If a person is unwilling to vaccinate and accepts the higher risk of a negative outcome, let him decide for himself, no?
Before I form 'a better argument' for you, can you please make an argument yourself about the effects of the vaccines besides reducing personal risks?
To note: I'm personally vaccinated, but people who think it is OK to restrict personal freedoms of other people based on very fluid and agenda-driven narrative about the current state of the 'scientific consensus' do not get much respect from me. Maybe it is because I'm from a country where personal freedoms are routinely abused and I value them much more than people who take these freedoms for grated.