[To many observers, the close relationship between Israel and many American evangelicals seems baffling. Many American evangelicals pledge their love for the State of Israel, support its claims against those of the Palestinians, and resist anything that might undercut Israel's security. But they also target Jews for evangelism and sometimes blame them for the mess the world is in. Israel eagerly accepts evangelicalism's public support and aggressively courts its leaders. But many Jews bitterly condemn Christian proselytism and do what they can to restrict the activities of missionaries in Israel. Nevertheless, both sides seem to be getting more than enough out of their relationship.] What does the last sentence mean?
It means that both sides (Israel and American Evangelicals) are obtaining good profit (in any form) from supporting each other (in spite of certain points of disagreement).
Please be aware that I'm neither a native English speaker nor a teacher.