How so? I eat organic veggies, organic meat, nothing with added sugars, from time to time I drink a glass of organic wine. It's absolutely not difficult to avoid anything "ultra-processed" (I dislike this term which is ehnancing something not strictly defined) or even store-bought "processed".
In fact, the only, in any way, "processed" food I eat are things I make myself: veggies baked with turkey, chicken and beef, blended, portioned and frozen. No preservatives other than fat and reasonably small amounts of salt (and with sodium, I also ingest potassium). Eating healthy is fairly easy (although more expensive) and avoiding shitty food is really not hard to achieve.