As long as you're equally prepared to be deconverted.

Totally agreed on this point! To have a fruitful theological conversation, all parties ideally would have set aside emotion and bias in order to pursue the truth. That is much easier said then done, but is something I think we should all strive for.

You have included a lot more here than I have the time to respond to sadly (hopefully someone else will) but I'll respond to your last point:

How are you able to love me, and also let me be, even as you genuinely believe that "my journey" ends in eternal suffering? Or how can you expect me, to accept someone who can do that, as a genuinely good person?

I can't say I'm a genuinely good person, but I would say that it comes down to respecting the persons individual autonomy. For example, if I have a friend who has a habit that I consider destructive, I wouldn't join them in the habit, but my love for them shouldn't change. I would be sad that the trajectory (in my opinion) would end with suffering but as their friend, I should lead by example in what I think is a better life and keep hoping that they see where I'm coming from. Plus, maybe they will convince me the other way on this or other topics!

My general life philosophy is to question everything. You will either end up with a more solid foundation in what you believe or you will have one of those awesome paradigm shattering events. Either way though, an open mind is required and I'd encourage you to keep listening to those you disagree with. You may be surprised!