Nearly all American brews, including that fizzy, watery swill Bud Light, are adjunct beers.
You quite right about most American beer...Of course, you have the micro-brews, but they are very expensive, and, myself, I do not care for 'blueberry' beer.
'Lite' beer created to be marketed to women and feminized men.
A very good Philadelphia brew that is also widely available on the East Coast is Yuengling Lager, Porter, and Black & Tan...Yuengling is oldest continuously operating brewery in the USA, located in Pottsville PA...Lager is an amber beer, extremely flavorful, and will kick your ass (drink 2-3)...It is good even warm!...Plus, about $5-6 cheaper a case than Budweiser.
Porter is, of course, porter, and Black & Tan is a bit lighter than the porter, but still dark...Their straight pale lager, or beer, is OK also.
Polish imported beer almost impossible to get on East Coast.