puupia: Players with 100k chips can force you to go all in all the time

Actually, they cannot not. They can do that 6 times, the 7th you will have 63.000 chips against their 38.000 chips (assuming you win - if you lose, there won't be a 7th time). While it's certainly an advantage to have more chips (although the advantage is less with limited bets), it's not a situation they can maintain for ever.