Notwithstanding any fallacies that may exist (can you point out a specific one?), the best available scientific evidence suggests that natural immunity is much stronger than the vaccines against COVID:
"Israelis who were vaccinated were 6.72 times more likely to get infected after the shot than after natural infection". https://archive.is/RlwBc
"Israelis who were vaccinated were 6.72 times more likely to get infected after the shot than after natural infection". https://archive.is/RlwBc