Does he really hate Israel?
Well, there is pretty aggressive speech from him. Maybe it’s necessary to keep up Iranian support. Maybe it’s a point of national and Arab honor to want the Golan Heights back.
Also, Syrian refugees in the EU haven’t been easy to live with. But, then again , not all of those migrants are Syrian, either.
So, my current opinion, open to change on more info, is that he’s not Mr. Wonderful, but he’s better than some of the other monsters of the region.