Europe does have an obesity crisis, and also nearly half of adults overweight. The UK is bad but not alone and not the highest.

But even then things are still not as bad as the USA. The obesity rate is about 23% in Europe compared to 43% in the US. Russia has an obesity rate of 30% skewing the European rate. For comparison other high European countries are Malta at 33%, Croatia at 31%, Ireland at 29%, Greece at 29%, UK at 27%, Germany at 21%. Lower rates are seen in Italy at 18% and France at 10%, but even those rates are not great - 1 in 10 people are obese and more are overweight.

So OP is right except the US is worse. Over a third of people are obese and many more are overweight - that is shocking even with how bad things are in Europe. It is certainly not projecting.

Edit: sorry the US obesity rate is 43% not 36%. Other figures updates to 2022 figures.

And does have an obesity problem!