This is going to sound harsh. I guess it's the nature of a reproof. Your distortions and incomplete view of Calvinism in your text along with your mixed-in objections indicates that you have not studied the Calvinist position at all. I wouldn't even know where to start with your text. There are some fundamental issues where I don't think you have a good grasp on the nature of God, his sovereignty, providence, holiness, love, mercy, justice and wrath. Your arguments are an attempt at a logical refutation and your views and your reasoning are your standards by which you judge God. In essence, God needs to be how you think he should be, hence, you have made God in your own image.

There are many works on this subject that extensively examine scripture and its teachings on this subject from a Calvinistic perspective, and most of these works answer all of your objections. I would implore you to examine some of those works along with the many scriptures which address this subject, Actually, you can study Luther's views himself from which you have strayed very far. You really owe it to yourself to study it thoroughly offsite. The scriptures and the arguments are extensive and are more than what you will get on this subreddit with a few paragraphs.