I wouldn't consider that good evidence when you're talking about an inter-dimensional realm of bliss run by a cosmic creator. Lots of cultures have ancient texts that describe an afterlife, and all cultures have some forms of NDEs. The concept is more likely to be a human construct.
I think that in addition to the lack of any empirical evidence, one could make an argument that the Gambit of Heaven is not properly explained. I don't have enough evidence to know whether I'd want to go to such a place, and the idea is so unlikely that it isn't something that merits an emotional connection. People's acceptance of an eternal life is based on cultural, cognitive, and confirmation biases without ever really thinking about it.
There's a certain potential emptiness to everlasting existence that is at least worth discussing.
As far as cosmic justice is concerned, it isn't really just to base the fate of one's eternal soul on a single thought, and it's always dangerous to assume that the universe is constructed with you in mind.
Your original post was a denouncement of the nature of heaven as being boring. I was responding to you that such a picture is incorrect in the Christian world view. You now wish to change the discussion to argue as to the evidence for the existence of heaven. That of course is always going to be a matter of faith and a debate that I don’t intend to have in a forum. My whole point in responding to you was to show that you cannot make an argument against heaven by appealing to a view of its nature that is not held by Christians. You set up a false premise/straw man and knocked it down…my intent was to show you the fallacy of your statement.