>[..]but when they're talking about 4th booster shot then to me it only indicates that maybe vaccines wasn't the right way to treat this pandemic.

What's wrong with booster shots? I'm going through tick-borne encephalitis vaccination course right now, and it's 3 shots in the first 6 months, fourth shot after 3 years, and then a shot every 5 years. I also take an influenza booster annually. I'll a COVID one to the list too. Because it works!