Orthodox Jews follow Jewish Law, so the punishment given for those Jews that eat Chametz (leavened bread) on Passover is Kaarais. Although there are numerous explanations of what that means, it is very bad, regardless of how you understand it. The simple understanding is that persons soul will be cut off. What that means is not simple - however.
For non-Orthodox Jews, the punishment is that by cutting yourself off from the Jewish people, denying your heritage, you deny yourself of a rich and rewarding experience that enhances your life. Many non-Orthodox Jews also accept the idea of making yourself holy, and missing out on Jewish occasions is a missed opportunity to be holy.
German Jews celebrate Passover, too.
Jews celebrate the exodus from Egypt. Also, matzohs are eaten instead of leavened products.
Yes, because Passover is a Jewish festival. see also:What_do_Jews_do_when_celebrating_passover
There are always Jews who celebrate Passover regardless of the location or circumstances. Jews celebrated Passover in the ghettos, and then in the concentration camps.
yes
Irish Jews celebrate Passover the same way as Jews all over the world.
Passover is usually only celebrated by Jews
Passover is celebrated in the home.
Answer 1Yes, Muslims observe Passover and fast it. They call it "Yum Ashura'a".Answer 2Muslims do believe in the events of the Passover and believe the event to be the Divine salvation of the Jewish people at that time. However, Muslims do not celebrate the Passover Seder in any way and do not have the restricted eating habits or holiday requirements that traditionally define Passover.A note on Answer 1: Yom Ashura has absolutely nothing to do with Passover, except it partially being a commemoration of the Exodus, and has no connection to Judaism (in terms of its religious character). In terms of historical origin and general activity it is much more similar to the Jewish Yom Kippur although the fast of Yom Ashura would be considered an unhappy fast whereas Yom Kippur is a happy fast.
The holiday of Passover celebrates our exodus from Egypt.
To celebrate Passover.
Although some Christians can choose to reference Passover, they do not celebrate the actual Jewish holiday of Passover. The main reason being that the beliefs of Christianity are diametrically opposed to the meaning behind Passover. Christians celebrate the holiday of Easter which occurs at the same time of year as Passover (although the two holidays are completely unrelated).