>Beef is already too expensive for most people. Americans are probably the exception but I can assure you that most Europeans do not have beef heavy diets.
Beef is too expensive for many Europeans because GDP per capita/standards of living are declining in many European countries. People in East Asia, the Middle East, Oceania and South America still eat plenty of beef too.
That is true, however beef was always somewhat of a luxury in many European regions, simpily due to geography and population density. We don't have a lot of cheap grazing land to raise cattle on. And if you have cattle it's typically more economical to use them for diary than meat.