https://academic.oup.com/ofid/article/10/6/ofad209/7131292? which states. "The risk of COVID-19 also increased with time since the most recent prior COVID-19 episode and with the number of vaccine doses previously received."
or this: https://www.bmj.com/company/newsroom/study-finds-gradual-increase-in-covid-infection-risk-after-second-vaccine-dose/
or this study:
https://www.medrxiv.org/content/10.1101/2021.08.24.21262415v1
Comparing SARS-CoV-2 natural immunity to vaccine-induced immunity: reinfections versus breakthrough infections
Sivan Gazit, Roei Shlezinger, Galit Perez, Roni Lotan, Asaf Peretz, Amir Ben-Tov, Dani Cohen, Khitam Muhsen, Gabriel Chodick, Tal Patalon
doi: https://doi.org/10.1101/2021.08.24.21262415
Now published in Clinical Infectious Diseases doi: 10.1093/cid/ciac262
I could go on and on. Take a look at articles about the excess deaths since 2021.