ABC is now Bitcoin Cash. SV is the chain that lost, and has no real users anyway. Drop support.
While I agree with you, I think mem devs still needs a few more day to see how the situation evolves and dealing with it. BSV supporters here need to have a voice in memo too.
Memo is open and not censored. SV supporters, fiat supporters and also BTC supports have been having a voice in memo for months. There really isn't much of a reason to fork support.