I very strongly suspect that few of those who demand physical "proof" will receive it.
Or to put it another way, not everyone will be treated like doubting Thomas. (John 20:24-29)
As Christ said:
But he answered and said unto them, An evil and adulterous generation seeketh after a sign; and there shall no sign be given to it, but the sign of the prophet Jonas: For as Jonas was three days and three nights in the whale's belly; so shall the Son of man be three days and three nights in the heart of the earth.
The men of Nineveh shall rise in judgment with this generation, and shall condemn it: because they repented at the preaching of Jonas; and, behold, a greater than Jonas [is] here. The queen of the south shall rise up in the judgment with this generation, and shall condemn it: for she came from the uttermost parts of the earth to hear the wisdom of Solomon; and, behold, a greater than Solomon [is] here. - Matthew 12:28-32
In this was manifested the love of God toward us, because that God sent his only begotten Son into the world, that we might live through him. I John 4:9
Neither pray I for these alone, but for them also which shall believe on me through their word; That they all may be one; as thou, Father, [art] in me, and I in thee, that they also may be one in us: that the world may believe that thou hast sent me. And the glory which thou gavest me I have given them; that they may be one, even as we are one: I in them, and thou in me, that they may be made perfect in one; and that the world may know that thou hast sent me, and hast loved them, as thou hast loved me. John 17:20-23
For ye are dead, and your life is hid with Christ in God. Colossians 3:3
And if any man hear my words, and believe not, I judge him not: for I came not to judge the world, but to save the world. He that rejecteth me, and receiveth not my words, hath one that judgeth him: the word that I have spoken, the same shall judge him in the last day. John 12:47-48
To God be the glory, not man, never man.
Thanks for your kind encouragements, Dear Sister in Christ.