I don't like vaccines and its hard to say why. I was vaccinated as a child and I am fine. My wife and I fully vaccinate our kids per doctor's recommendation. I guess you could say I trust the doctors advice more than my silly gut feeling.

However I can articulate that:

I don't like that vaccine makers get special immunity from lawsuits.

I don't like that pediatricians get payouts from big pharma based in what percentage of their practice received their vaccine products.

I don't like that the definition of a vaccine was changed to accommodate the mRNA COVID shots while other valid treatments that already existed were pushed aside to enable the emergency use authorization.

It's just enough to give me the ick, but their benefit is generally obvious so I hold my nose.