In ancient Israel, #passover was frequently accompanied by mass, national revivals. King Hezekiah threw a massive Passover feast, a national BBQ with 2000 bulls and 17000 sheep, but that was still nothing compared to Josiah's Great Passover. He had 37600 lambs and 3800 bulls! He destroyed pagan altars throughout the land and then celebrated Passover.
We can't eat a real Passover away from Jerusalem, but this is still a good principle. Don't eat the Passover unworthily. If you don't think you should be keeping Passover and Unleavened Bread because it's too Jewish or too...whatever... then don't. Pray about it, meditate on it, and consider keeping it next year.
Whoever, therefore, eats the bread or drinks the cup of the Lord in an unworthy manner will be guilty concerning the body and blood of the Lord.
1 Corinthians 11:27