I am not mingling anything I am dividing them, there were believers who heeded the warnings of letters and the non-believers who did not.
There is evidence that many believers fled to Pella as they were instructed to do.
If you call Ebionites who believed Jesus was just a man whose father was Joseph and not the Holy Spirit and that converts should be circumcised and follow the law believers that is.
https://en.wikipedia.org/wiki/Ebionites