OK, so the rational ones with social grace have set out their stall. As an aside, is it axiomatic that the weaker a position, the more hostile the reaction to having it satirised or questioned? An educated person being lampooned or having his judgement denigrated by a flat-earther doesn't need to get angry - simply pointing to the evidence (whether the evidence is accepted by the lampooner or not) is enough. A believer in astrology (or a theist) similarly baited has no evidence to point to and must perforce take it as an attack on their person/peer group, resulting in fear/anger and (normally enough) hostility. Make sense?