Thanos’ plan was unmitigated garbage anyway.
Humanity reached 4B in 1975 and hit 8B in 2022. On that basis, if half of humanity died when Thanos snapped his fingers 50 years later we’d be back to 8B people again.
——— Edited to billions not millions because I wrote it while under the influence of stupidity.
Oops. Yup, utter failed to put Bs! Put it down to not having had enough coffee today!