Is it possible to change my colonies primary ideology?

[Shovel]

Can i somehow change my entire colonies ideology? A few people joined and it changed my colonies ideology and i want to go back to my old one is it possible to do this?

[psychotron666420]

Make sure a majority of your colony is the old ideology. Once you have less than 3 people of a given ideology, you don't have to have roles for their religions

[MadArtillery]

Need a majority.

[Jigain]

Arrest those that aren't of your ideoligion and set them to be converted. Once they convert they can be released.

[liosalpha]

https://steamcommunity.com/sharedfiles/filedetails/?id=1874644848

[Hoki]

the colonies ideology is determed by majority. but the interaction with the individual ideologies are not restricted by that. if you have enough pawns you still use the events of the minor ones to turn them into the majority over time. alternative a hard conversion via imprisioning other beliefs is also an option.

[glass zebra]

Originally posted by Discount Crowbar Man:

Can i somehow change my entire colonies ideology?

Originally posted by Discount Crowbar Man:

A few people joined and it changed my colonies ideology

You already answered your own question in the op? If you wanna change it back, you gotta do what they did to you: outnumber them. You can either convert people (moral guide skill or ritual) or get some one the rare outsiders with your own ideology. The majority ideology isn't really important for anything but the leader choice though. You can still use all your rituals and roles (expect leader).
Some weirder alternatives are: imprisoning people of the other ideology, sending them on those "send me x pawns for y time missions" or similar things that get people out of your colonists list. The game will reevaluate your majority after some time.