Scripture makes it very clear that Hell is real and waiting for those who do not repent.
Actually our pastor tells of a time he was flying somewhere and looked up the words Hell, Sheol, Gehenna, netherworls, etc.
His quote is that hell is mentioned in the Bible more often than heaven is.
People like hell when they think of Jeffrey Dahmer, but scoff when men like Gandhi are said to go to hell. If Dahmer really did repented and Gandhi never was a Christian then Gandhi is in hell and Dahmer isn’t.
That may have been how it was sold in the past, but I think nowadays at least what I hear is how a belief in God makes the here and now so blessed. With the knowledge of an eternity that is completely blessed.
One obvious point I would think for the “proof” of Hell (in my book a separation from God), is why the heck would Jesus (God himself!) go through the pain and suffering to save us, if there was nothing to save us from?