Unfortunately, the United States needs to involve itself in Middle Eastern affairs. Terror groups from the region have dedicated themselves to destroying the U.S. and its citizens in every way possible. To prevent death and destruction, the U.S. needs to stop these threats at their source in the Middle East.
Yes, the United States should be involved in Middle Eastern affairs, to the extent that it is necessary to maintain the peace and defend Israel's right to exist. There are many nations that have strong opinions about Israel and wish to harm it. It is very important to the United States, both strategically and militarily, to protect Israel.