2. Vaccines were completelly ineffective. Virus adapted much faster and became less lethal - as expected. Or rather immunity of organism of people stopped overreact to something that was never lethal, unless you had no immunity. Sweden is top example of how to deal with covid by doing nothing. My home country vaccinated over 80% population and had the highest fatality rate per population from blood clots mainly. Corruption kills people.
3. Lockdowns were too late. Because of China. Lockdowns for various reasons did not work - healthy looking people were spreading covid for months before and during lockdown - it seems that you still do not realize that major part of people got through covid without life threatening complications.