Wether you invest or not you still cant make a profit in the long run. It is still a gambling even you invest and no one can win the long run in gambling.
Your investing on the house and the house won't lose in the long run unless someones cheating every roll.
So your likely saying that its a guaranteed profit if you invest in the house since house wont lose in the long run(your just a part, you dont own the house and its different imo). Then how could others keep struggling on earning bitcoin? Why others choose to play instead of investing? Remember dude, the word "gambling" is still there. Invest or nah it is still a gambling.