also nearly half of adults overweight

One thing worth pointing out is that the “overweight” category (BMI between 25 and 30) actually has lower all cause mortality than the “normal” category (BMI between 20 and 25:

pubmed.ncbi.nlm.nih.gov/37405977/#gid=article-fig…

I think that suggests that being merely “overweight” probably isn’t a significant health problem.