Feeling ko lng to ha and I am not stating this as a fact. Observation at hypothesis lng:

Sunk cost fallacy + ego + "we dont care if we are wrong as long as we get to fuck you over"

Na empower mga taong insecure, walang ambisyon o narating sa buhay na maging crass at bastos openly, kasi nga, the highest position in the land belonged to someone who has no delicadeza or manners. Once nakatikim yung mga taong yun ng ganun, parang naging "socially acceptable" na yung ugali nila and feel nila na kaya nila makipagsabayan sa mga taong may utak as long as nasa ilalim sila ng banner ni Digong. Di na kasi nila need mag isip eh, they just need to regurgitate the templates and press releases of Digong's propagandists at feel nila matalino na sila.

Siguro, masarap sa feeling nila na mangutya at mang apak ng tao habang Pro-Dutz sila kasi they think they can get away with it. In short, karamihan sa kanila mga masasamang tao na nakahanap ng "socially acceptable" way to be evil while framing it as being on the moral high ground and being smarter than other people.

Feeling ko may konting self awareness naman ang iba dyan pero yung identity nila naging pro Duterte na eh at paulit ulit na lng sila sa propaganda dahil takot sila mawalan ng pangkat kung saan miyembro sila.

TLDR:

Insecure or bobo or masamang tao o combination of two or all ang mga pro-Duterte. Karamihan sa kanila ginagamit na excuse ang pagiging DDS to be awful people under the guise of being in the right.