I understand your deep frustration and skepticism toward Christianity, and some of your language reflects genuine engagement with serious philosophical and theological questions. These aren’t new objections and Christians have wrestled with them for centuries. I’d like to offer a different way of approaching these topics, I am not here to convert not convince you but would like try and correctly address some of these issues.
God intends human to be in communion with him, not to coerce them. Mankind is given free will, and part of that reality includes the possibility of evil. We must not think of God as a physical thing that exist in a literal observation of us. The Christian faith is one that comes from revelation, and there are things that cannot be easily grasped with our modern interpretation of ancient scripture. Evil exists and it is necessarily permitted to exist. Seems a little unsatisfactory of an answer but there's a lot more that we could go into on this topic. It's a bit hard, but maybe it's not so hard to understand that there's a lot more to be understood within a holistic paradigm.
Heaven is not something that we really understand or really know to exist in this moment. Maybe some liberal depictions have created a little bit of a misunderstanding. That being said making some hypothetical argument about sin not being able to enter heaven and jerking it in hell doesn't give much to talk about. We really don't know what heaven is nor what it entails truly, we can read the Book of Revelation, but the problem is that we're prone to understand in a literal way. Christianity and the understanding of scripture has suffered a bit to modern interpretation.
You can actually go and read what the early "Church fathers believed and how the scriptures were understood" unfortunately picking up a Bible and believing what you understand of it is not always conducive to is intended meaning.
More on heaven. Again, we cannot actually know, even if someone claims to have had a vision or a near-death experience Christianity teaches that you cannot always trust what you feel, likewise what you may have a dream about. As we are man, visions can come from either three places. From ourselves, demons, or God. It would be foolish to claim to know the difference no matter how convinced we may be. You are totally right, such things are incomprehensible. We understand that we must all answer to God when the day comes. What day exactly? We don't know, there will be signs of the times but Christ comes like a thief in the night. (paraphrasing scripture) Communion with Christ is totally a choice, and it's a little difficult to follow the example of being "forced to marry" Again, I can see you're trying to abstract concepts in literal way, but this is really a fault of modern interpretation.
So nobody knows who actually goes to heaven, the Christian paradigm provides us with a good guide of how we should live and %100 percent makes the knowledge claim of being "true" but it does not tell you who will indeed go to heaven. Christ provides an excellent example and teachings to us that we may live as good Christian. You can "cherry pick" whatever you want to say "yes it does!" but I'd argue that you are misunderstanding something. Just how you could take some phrases and claim that you "must do this to be saved" and spin it to mean whatever you want. (of course this would be wrong)
In Christ/God there is life, but probably not the way you understand. The fall of man (Garden of Eden) is what caused death.. but not as you may understand it entirely. Christ came as the word incarnate to fulfil a new covenant to give us life/regeneration. Christ came to destroy death, and descended into Hades to preach the Gospel. (yes this is in the scripture) "For God so loved the world, that he gave his only begotten Son, that whosoever believeth in him should not perish, but have everlasting life" John 3:16. But is it that simple? No, not really, simple "belief is not what being a Christian is about. There are also the things you do.
- As I had stated before, physical death is not the end of life. Death is to be without Christ, not to literally die as you and I know. That is what it means to not taste death, but of course those who died before Christ had been crucified indeed would have tasted death.
Many "churches" are really just cults. People will till the end of times as we know it use the word of God for evil. Churches do take money to run, and are community driven efforts. I think it's pretty easy to see in the example of "Mega Churches" how corruption occurs. Some more on that note real quick. Google "Timeline of Church history" and you can see how apostatised many "Churches" really are.
Yes, Christianity does discourage engaging in many things especially not marrying another Christian. You can definitely hang out with non- Christians, it would be awfully silly to ostracize somebody over that though I'm sure it could happen. So it's also not true that you cannot be ethical without being a Christian, but where do you suppose morals come from? Common sense? Evolution? Science? We could begin to suppose that it could, but it's gonna fall short for a true justification as to why that may be the case. Morals cannot be subjective, as that would mean that they could easily change.
I can totally see how Christianity cannot seem logical, but I think you might be demanding a simple answer to something a bit more complex.
I'm sure I didn't give a completely satisfactory answer as I'm not looking to convince of anything but I am completely open to try and answer what I can. Hope this reply find you well, my intention is not to provoke so I hope we can keep it civil and avoid egregious insults.