Well, that's not my ONLY problem... :-)
Number 1 I do think it's important that we observe the Lord's holy days WHEN he said to observe them.
But number 2 the focus of Passover is and should be on the DEATH of Christ on the cross and his redemptive sacrifice. Modern Christianity has altered that message and them by making Easter ABOUT his resurrection. Two different things that lead believers astray...which is why we have easter eggs and easter bunnies.