Is there any movement to disassociate these african churches from the anglican community? It is normally presented as something that people don't want to do, but IMO (not that it counts) there has to be a limit of what is acceptable christian practice, and wanting to kill people seems beyond that line to me.
I don't know exactly where you are of what you have been following. The situation is rather complex. I'll try to explain a bit of it, but my explanation will be inadequate.
The Anglican Communion consists of a number of national churches, incuding the Episcopal Church in the U.S., various Anglican Churches in Africa, South America, Canada, and other areas. Although the Archbishop of Canterbury has considerable influence, he has no actual power over the various national churches. They are, in fact, independent, but recognize each other's priests, bishops, etc. Thus, an Anglican moving from Fiji to the U.S would automatically be considered to be a member of the Episcopal Church.
The various churches that are part of the Anglican Communion have never agreed on everything. Instead, differences in opinion have generally been accepted. That is also true to varying degrees in the various national churches. It makes sense; no thinking people will ever agree on everything and forcing them to pretend to agree on everything leads to dishonesty.
Every 10 years, there is the Lambeth Conference to which the Archbishop of Canterbury invites all the bishops and archbishops of all the national churches which are part of the Anglican Communion. They discuss things, issue documents, positions, etc., which are accepted to varying degrees. There was considerable controversy when the Episcopal Church in the U.S. agreed to ordain women to the priesthood. That has been totally rejected by some dioceses in the U.S., by some individual parishes, and by some of the national churches, but none of the national churches withdrew from the Anglican Communion because of it.
There has also been considerable disagreement regarding same-sex coupling. In general, the African churches have totally rejected it, even though some leaders in the rejecting churches support same-sex unions. The Anglican Church in South Africa supports same-sex unions, and retired archbishop Desmond Tutu has been very supportive. The non-supporting churches in South Africa want the Episcopal Church in the U.S. to be ejected from the Anglican Communion for supporting same-sex unions and became absolutely livid when the Diocese of Los Angles chose a partnered lesbian as a bishop. The African churches have threatened to withdraw from the Anglican Communion unless the Episcopal Church is ejected. Also, the African churches have created a schismatic diocese in the U.S. for parishes that have left the Episcopal Church over the issue.
One document approved by the decennial Lambeth Conference called for dialogue over the issue of homosexuality; the dialogue was to include gay persons. The churches of Africa refused to have anything to do with a dialogue and accuse the Episcopal Church of rushing things without any consultation. Yet, the Episcopal Church has been trying to address this issue since about 1975!!!!
So, you can get a rough idea of where things stand now. It's anyone's guess what will happen.
The real issue is how to understand the Bible. Some people seem to think that God dictated the Bible to a stenotypist who transferred it to a CD-ROM to ensure that every word in the Bible was directly from God. However, the idea that every word in the Bible is from God and that there are no errors is, historically speaking, quite recent and actually very radical. It was written over many centuries and has many different authors, some of whom are unknown. To attach the same weight to everything therein is total nonsense; one has to use considerable judgment and there will never total agreement, which is not necessarily a bad thing.