Is ADMK only selling point is not being DMK.

There is a lot of discussion about DMK's only selling point being its opposition to BJP. Despite facing unprecedented defeats, ADMK has not introduced any major changes or reforms even inside party. Within the party, they are slow to react to news and have yet to address internal issues. Even though I have been out of the party for four years, the problems remain unresolved. Most of post here says chennai has slowed down but most of the slowness happend when admk was in helm of 10 years ( case in point -Metro) When amma was there frequent change of minister and power then after her internal fights . dont go what aboutery on dmk,