I don't know what I would do. I would hope that I would face due process and defend myself, but I am not Assange and so cannot answer that question.
That's the entire issue with this. If Assange was getting his due process, the interview would have taken place via video conference as has been enshrined in Swedish judicial practice via this (https://lagen.nu/dom/nja/2007s337) ruling from the Swedish supreme court. The man probably knows more about his situation than you do and if he thinks going to Sweden is a bad idea for him then, unless you can come up with a really good reason why not, his opinion on the matter carries a lot more weight than yours.