The research on getting people to change political attitudes or engage in pro-social political behaviors says that public shame, especially amongst their friends/communities/families, is the most effective lever available.
So, instead of making a list of everyone who believes in $prosocial_behaviors_and_policies create a publicly searchable, and verifiable database of folks engaged in $anti_social_behaviors_and_policies that are destructive to the their communities.
Better transparency into where everyone stands helps to prevent toxic policies and rhetoric that poison the commons and allows communities (teammates, employers, friends, and family-- both present and future) to then apply social pressure or the threat of ostracism in order to generate meaningful change.
There's a reason that bad actors (of all stripes and political affiliations) fear transparency! It's a highly effective tool for aligning behavior with societal/community values.