Cisco was a great company but that changed many years ago (some say 2010 - the precise year does not matter).
Those who joined before 2010 had at least 16 years to look for something better. Why not? Why complain for more than 16 years?
Those who joined after 2010 should have known that Cisco is not a good company to work for (I give the benefit of doubt to those who joined right after 2010). Why did you join and complain?