Why did the germans kill large numbers of the slavic peoples? what was their goal and intent?

The Slavic people were considered racially and culturally inferior to the Aryans and, as such, needed to be exterminated. The main goal that the Aryans and Europeans were trying to achieve was a total wipeout of the Slavic population, with a small number held over for a time as a type of forced labor.

Rome=church

Florence=glass

Venice=banking