Did they ? just the first 3 after that in times of zayn al abideen there seems to be a entente between ummayyads and banu hashim and subsequent banu hashim uprisings against ummayyads were not supported by 12 imams of shias
do 12ers remember zayd b Ali ? his son ? or nafs zazakkiya ? or Abdullah b muawuyah ?
No after karbala the door is shut to armed uprising as far as 12ers are concerned