Do we just flick it in with our entire opening range here, or is there a hand you will consider folding that you open preflop once it goes raise/call, despite the small sizing?

PokerStars Hand #155239026173: Tournament #1596282414, $1000+$50 USD Hold'em No Limit - Level VIII (250/500) - 2016/06/26 17:31:48 ET
Table '1596282414 6' 9-max Seat #5 is the button
Seat 1: newguy89 (50951 in chips)
Seat 2: MagikBUsted (27254 in chips)
Seat 4: zugzwang16 (18626 in chips)
Seat 5: tretbootlion (28030 in chips)
Seat 6: OLD TIME GIN (59464 in chips)
Seat 7: tonkaaaa (29231 in chips)
Seat 8: flixmix1 (27171 in chips)
Seat 9: NOBBSY_8 (33991 in chips)
newguy89: posts the ante 50
MagikBUsted: posts the ante 50
zugzwang16: posts the ante 50
tretbootlion: posts the ante 50
OLD TIME GIN: posts the ante 50
tonkaaaa: posts the ante 50
flixmix1: posts the ante 50
NOBBSY_8: posts the ante 50
OLD TIME GIN: posts small blind 250
tonkaaaa: posts big blind 500
*** HOLE CARDS ***
Dealt to newguy89 [XxXx]
flixmix1: folds
NOBBSY_8: folds
newguy89: raises 750 to 1250
MagikBUsted: raises 1400 to 2650
zugzwang16: folds
tretbootlion: folds
OLD TIME GIN: folds
tonkaaaa: calls 2150
newguy89: folds

One of the alleged greatest tournament poker players of all time claims that there is not a single hand in our open range here that we should fold once it goes 3bet/call given the sizing. I strongly disagree, but I am just a new guy so what do I know.

What do you guys/gals/trolls think?

You shouldn't have hands in your opening range with which you aren't happy to at least call here.

Maybe I'd open and now fold exactly ATo.