USA deaths: mean estimate for obesity-attributable death was 324 940 https://pubmed.ncbi.nlm.nih.gov/10546692/ USA deaths: About 178,000 (about 5% of all) yearly deaths from excessive alcohol occurred in 2020 and 2021 in the United States https://www.niaaa.nih.gov/alcohols-effects-health/alcohol-to...
Your claim was: "Sugar is much more addictive and harmful than alcohol". I have no objection to the claim that obesity claims more lives than alcohol in the US.
But I don’t think you get obesity just by eating sugar, you get diabetes. Obesity depends on other factors and eating habits doesn’t it?