No it doesn't make us as bad as them.
They are openly advocating and even openly offering support to those who want to kill innocent people (who are trying to live their lives in peace.)
They are thus willingly taking part in crimes against humanity. JMHO, killing them would be an act of justifiable self-defense.
Even if people like this guy aren't directly involved in the terrorism, it is they who make the terrorism possible, as they openly encourage it...going so far as to train their own children to act as suicide bombs.
He's not an innocent.
Scott Evil