I don't think condescending is the right word here. Can't be sure without knowing your intent, but do you mean something like "should not be so accepting of proprietary firmware"?
TIL! False cognate. I'm not a native speaker. In Portuguese there is the term "condescendente" which means "indulgent, one who doesn't imposes discipline". What is the equivalent term in English?
BTW also a Portuguese speaker and this particular false cognate gets me almost every time, but the other way (using it in Portuguese with the English meaning in mind)
Thanks from increasing my list of examples why people should no be so condescending of proprietary firmware.