Yes freebies are to induce the gambling addictions. I do see many people are making good profits in demo accounts and failing in real gambling. Same way when you bet in small amount you will win. When you go with bigger bet amount, no other go other than loss. Long run is just a theoretical, even in short run I faced losses.
What theory is that? I dont think that is possible thing, the only thing that cause of your loss because you dont have enough balance to cover your loss so in the end you are lose all of your bet. Although it is a long run but if you can maintain your balance until the end I think you can cover your loss and get some profit
It is simply not true. If you really believe that "you will win if your bets are small", you can try flat betting with small amount to see if you will win after, say 100000 bets. Trust me, you will not, as the EV of each of your bets, big or small, are negative.