Respectfully, I think you have misinterpreted the relevant passage, and set up a standard that no mere human could (or should) meet. Paul instructed husbands to
love their wives
as Christ loved the Church and gave Himself up for her. Paul did not instruct the
prospective husband to give up everything in his life for a
prospective wife. A husband should indeed be willing to surrender his life (literal, not figurative) for his wife, but asking him to give up everything
in his life
prior to marriage; well, only Christ could do that, because only Christ knows the future with certainty.
Such a view would run contrary to the wisdom of Proverbs 24:7, "Prepare thy work without, and make it fit for thyself in the field; and afterwards build thine house" or, in plain English, get your means of income established before taking on the responsibilities of a family. A man who has to leave all behind (including home, career, pension, investments, etc.), move to where you are, and start from scratch, is
not going to be someone who will be able to provide for you right away, or for a while. Expecting him to do all that "on faith" is foolhardy if it is not what God has told
him to do.
Would it not make a whole lot more sense to consider a man who is established in "his" world, who has a job, a home, and a pension, and to move yourself to him? You seem to be acknowledging the biblical examples, and contradicting them in the same breath. Ruth gave up her all and moved, not even knowing Boaz existed, and Rebecca gave up her all and moved to Isaac. Further, although Christ lay down His life for His bride, He also calls on her to lay down her life for Him...
prior to the "marriage".
I can't think of a biblical example where a godly man moved into his fiancee's world and stayed there at her request. Not even Jesus did that; He came to us because we
could not go to Him, not because we
would not.