Going back to my last statement, I would say that the vast majority of people in medicine and science would say that the vaccines are safe and effective; and you have a small but very vocal group suggesting otherwise.
Getting to your more recent question, masks, of course, are helpful, but we have other tools that are also very helpful in creating safer indoor spaces.
Rapid testing, and rapid testing before going into an indoor space, is very helpful. Creating better ventilation in indoor spaces is also a helpful tool. Vaccination, of course, while not perfect in reducing the risk of infection, does lower one's risk infection, just not to the same extent as it did with earlier variants.
Those are all helpful tools to create a safer indoor space. These are multi-layered tools. No one tool is perfect, but when you add them all up, you have a synergistic effect.