So worst case scenario, Bitfinex under it's rug is MTGOX, will this cause Bitcoin to hit 100,000? Because there will literally be no place to sell or buy....
I am not sure why you think this scenario will magically make the price of bitcoin go to $100,000.00,. You do know there are other exchanges that allow you to buy and sell bitcoins. I personally do not use bitfinex at all that much. I use other exchanges like coinbase and cex.io and some limited services on xapo. Then let us not forget things like bitcoin atms, granted they are limited to like $20,000.00 a day sell and buy limit. This are the options that i personally lnow and use myself, but i am sure many exist out there.