That's just wrong. Why do people keep claiming this? Consensus immunity for Pfizer against delta is still in the 60-80% range, which while less than the 95% measured against earlier variants is vastly higher than the unvaccinated. (Though to be fair this is hard to measure against the confounding background that the vaccinated tend to be better at other mitigation strategies too.)

Even the Israel data you cite, which is an outlier, measured 39% effectiveness, which is STILL twice as good as being unvaccinated.