Where did you get that idea? The evidence shows the vaccine works perfectly fine for all the variants we know of so far.
Eradication is not the goal. So why mention it?
Through all of these responses it's just a bit sad to see both the misunderstanding of information coupled with misinformation that misleads you about the data.
No one disputes that there have been rare side effects, but that is true of all medicine. This is safer than many things people commonly consume. Birth control causes more blood clots.