Star Stellaris, the role of aborigines, how to deal with aborigines best?

Can do static research +3 social research points/month. You can do radical research +6 social research points/month, but it will make the indigenous residents exclusive and militarized. It can also help primitive residents enter the cosmic age, so that their ideology and government form are as likely as yours. After they enter the cosmic age, they will take the initiative to apply to become your vassal state, at the cost of consuming 5 points of energy and 5 points of social research/month during the help period.