I can imagine rapture will be rejected but for some they'll be a lot of soul searching.I think that much of the world will reject that it was the Rapture after it has happened. Reason being, only biblical Christians will go up. Cultural Christians, the ones who belong to churches but were never actually born again, will not be part of the Rapture. There are many people who believe they are Christians for reasons that have nothing to do with Jesus. There will be many churches still in operation AFTER the Rapture takes place. Christians in-name-only will be left behind in sufficient numbers to allow for an alternate explanation as to why some Christians disappeared.