Jewish Passover: blood of lambs & FREEDOM....But are they thankful for the blood of Christ?

Passover is not about FREEDOM, as the Jews claim & worship, but about death for disobedience & rejection of 1GOD...for the angel of death came & killed all first born of those that did not obey His Command.
The blood of lambs on doorposts & lintels was a sign of Christ's blood as ONLY WAY of Life. Are the Jews that celebrate Passover thankful for the blood of Christ?
...so why do some "Christians" celebrate Passover of the Jews?

And the Jews, and man, continue to worship FREEDOM...as Israel has even proclaimed that it is not a nation of One God and that it believes in the FREEDOM & right for each to worship any god...declared by Prime Minister Netanyahu that this will never change.