This headline is bogus; the comparison to Brexit makes no sense here. Brexit was voted on in a democratic process (for better or worse), but all of these countries currently have junta governments that were not elected, and were suspended by ECOWAS because of it. Now they are unilaterally “choosing” to leave ECOWAS, but truthfully, ECOWAS considers them illegitimate and has considered military action (though done very little). It will be interesting to see if the threat of leaving finally prompts some collective action or not.