Complex sentence: He says that the real Sunnis ("Ahlul Sunnah") are the ones who follow the Sunnah of the Prophet Muhammad but Sunnis today rather follow the Sunnah and teachings of Abu Bakr since apparently Suunis nowadays have rejected Ali ibn Abi Talib and Ahlulbayt.
Split into simpler sentences: He says that the real Sunnis ("Ahlul Sunnah") are the ones who follow the Sunnah of the Prophet Muhammad. He continues that Sunnis today follow the Sunnah and teachings of Abu Bakr instead, having rejected Ali ibn Abi Talib and Ahlulbayt.