When we say "cast reflection upon," we mean to criticize or make negative comments about someone or something. There are many synonyms that can be used in place of this phrase, such as demonize, vilify, denigrate, disparage, or malign. Each of these words carries with it a strong negative connotation and implies a judgmental attitude towards the subject being discussed. It is important to use these words with caution, as they can be hurtful and destructive if used recklessly. Instead, we should strive to communicate our opinions in a respectful and constructive manner, focusing on the issues at hand rather than attacking individuals or groups.