Christians can believe in a Biblical Last Judgement without worshiping the Apocalypse, like you have described. Many do worship the Second Coming as the hope and culmination of ther faith, and I am as sick of it as anyone, but there is nothing unbiblical about God judging the unredeemed. Justice is as much a part of God's nature as mercy. There cannot be one without the other, just as by left we understand right, and vice-versa.
Christin apocalyptic beliefs are certainly dangerous, but that is no reason to flee them. Life is dangerous. God is dangerous. It is dangerous to approach the Throne trusting to God's promised grace, yet it is more dangerous, and foolhardy in addition, to turn one's back on God and abandon oneself to certain judgement. We fall into error when we try to reinvent God on our own terms, by making him safe and comfortable. He is not a tame lion. In the dangers of life, the only safety is found in acknowledging and embracing the danger of God.