You will need to reshape who the userbase is in order to cross a threshold from disapproval to approval. Slow purges are required to achieve this in a number of ways. One of the benefits of purges is that if you’re removing one “type” of person you’re usually making a community attractive to a different type.
Small example: Hexbear :gui-trans:
Two rounds of purging over a few months of anti trans posters to make Hexbear safer for trans ppl