This is exactly what God has warned His people about for decades--the great apostasy of the last days--when all churches unite together upon a common platform of belief (see Great Controversy, p 444-45).
Hiki ndicho hasa ambacho Mungu ameonya watu wake miongo kadhaa uasi mkuu wa nyakati za mwisho wakati Makanisa yote yanapounganika pamoja katika jukwaa la mafundisho ya imani yasiyoleta hitilafu (angalia The Great Controversy, ukr. 444-445).