The age old argument.... goes like this:
God Squad: "You're going to Hell"
Me: "What's in Hell?"
God Squad: "People like you"
Me: "What's in Heaven?"
God Squad: "People like me"
Me: "You need to work on your threats"

I say I already have a deluxe condo reserved

Smile and say you will be in good company.

Say, "See you there, I guess", or "We'll have to catch up, grab lunch, do whatever heathens do in the afterlife"

Damn I offer them a ride on my bus...free of charge

I either say, " I'll see you there," or I don't believe in hell."

Try not to piss yourself laughing at them; that is may recommendation.

I always speak honestly and say: How can I be concerned with going to hell when I know hell does not exist? Except, possibly, for the one we sometimes create for ourselves right here on Earth in the here and now.

Ask them to show the part in the bible that gives a very in depth description of heaven, after all you might be there for eternity.

just tell 'em there is no after life! and to go fuckoff!

What would make you think there is a hell? Which religion are you referring to? And if Christian which sect? Mormon? Jehovia Witness. Catholic, Orthodox Christian? Jewish? Hindu Hell? Islamic Hell? Which version? Sunni Shia,This punitive unfounded belief is substantiated by... what? That's what I say...

"It's your hell, you burn in it"

Laugh

How can go to someplace that doesn't exist. Unless of course referring to Hell, Arizona. In which case be sure and bring your ice cooler, it's hot out there.

Simple say "There is no hell, grow up"

One my most well used responses is that I simply say to them, "Okay, no Worries, I'll see you there then."

Shrug it off like it's not a big deal just to show them you're not afraid of made up threats. I mean you can argue with them if you want, but most of the time it's not worth it.

If you're feeling standoffish then yea, you can point out all the flaws with the idea of hell and the god that devised such a place and the rules around it. Otherwise you just look at them like they're a crazy person and walk away.

I say, your god, your hell, you go.

What do you do when any bully makes an empty threat? Be prepared. Whatever your response, ponder it, own it, be comfortable with it.

I tell people they're entitled to believe whatever they want, and so am I.

Ask if they serve beer there. It's a waste of time talking to them. 30% love Trump no matter what and a huuuuge % are cross-eyed mouth-frothing evangelics. So they lost all claim agains moral-relativism which was their complaint and biiig argument. They are cluuuuuueless. It's like arguing how many angels dance on a head of a pin? (A favorite theological argument in the middle ages)

Find a group of people that respect you and are not trying to control you for their own ends. Hang with them. The Hell sayers want confirmation of their beliefs. That is not your job, duty - your monkey or your Circus. Just walk away.

I've tried saying that I don't fear Hell because a) I don't believe in its existence, b) I've been through enough over the past couple of years personally that I don't fear it c) I'll assume Dante's Inferno was right and I'll just be hanging out with the non-believers and righteous yet unbaptized, so things could be worse, but yeah, I'll deal with the torments of having to wait for a table for Sunday brunch, or d) I'm really just not that enthused about meeting the Apostle Paul or reuniting with the self-appointed gatekeepers of the facility.

L.O.L. do not waste your time with nasty fatheads!

"sounds like fun"

It is a bit hard to be scared of something one doesnt believe in?