Actually Egypt has been supporting Israel and US policies. And Egypt has been supportive of the Coptic Christians. There have a few churches destroyed but he has had them re-built. When the Muslim Brotherhood ruled (thank you Obama) the Coptics were severely persecuted. Sisi protects them.
The last thing Egypt needs is a flood of violent hyper-islamists on its’ soil.
Trying to be a rational actor in the middle east is tough enough without that.