(Seiyu stopped making Reece's here (almost?) entirely so I only get them when family sends them or someone on one of the military bases is feeling kind and gifts us a pack).
They are though and I say that as someone that loved them. If you're talking about the Reese's specifically, they've gotten shittier than they used to be. Lower-quality peanut butter, worse chocolate. They're gross now.
American chocolate really is trash. Head to Aldi and get some Schogetten or Choceur. You'll taste how much better the chocolate is.