Being Jewish and following Judaism are different. Not all Jewish people follow Judaism. Nor is the Judaism of today in line with what the Hebrew scriptures teach.
A Messianic Jew is a Jewish person (with at least one Jewish parent) who has come to know and follow Yeshua / Jesus as the Messiah promised to Israel as found in the Hebrew Bible.
Judaism is the religion that the Rabbis have formed over many centuries which they believe will get Jewish people to God. It is different in many places from what the Hebrew Bible teaches.
Which Christianity are you talking about? The one with Pope's, Cardinals and Crusades? No, we do not believe in that Christianity.
Since 2006, Rock of Israel has been renting vendor booths at State and County fairs across the USA.
Over the years we have taken small groups tours to Israel.