You claim to have no idea what Bishara did, but you defend him monetheless. You could have looked it up as readily as you wrote your post. It's alleged that he gave or sold secrets to Israel's enemies, an act of treason. Bishara is a member of the Knesset, far from third-class citizen. As such he had all Parliamentary honors and benefit. Apparently he saw fit to betray his position and consort with Israel's enemies. Bishara is a modern version of Benedict Arnold. He has a clear choice, come home and stand trial or seek refuge among the people he betrayed Israel to.
Mexico approves U.S. extradition warrant for fugitive kingpin 'El Chapo' (Reuters)
from the article: Balad Chairman Bishara: I cannot receive a fair trial in Israel