if you are not going to win with one account, you are not going to win with 1000 account neither. You could get lucky for a while and all but you are not going to suddenly start winning a huge amount of money just because you have multiple accounts, it will always be the same result. Instead of having 1 account crash with one bad streak, you are going to have 1000 accounts all distributed with same deposit, and one by one they are going to end up losing all of your money anyway.
I would have to agree that this will probably take longer for you to crash and have no money, because 1 account is quicker to gamble then 1000 accounts, but it is still the same game and same logic and still has a house edge so I do not see any changes in the long term.
We have already talked about the simple fact that house edge is house edge and there is no way we could change that, you could have as many accounts or do as many cheeky stuff as you want and in the end we all lose money because of house edge. That house edge manages to make it mathematically impossible for all of us to lose money when we gamble long enough, if we keep constantly grinding and grinding, we will end up with losing a lot of money and that is the end of the story, no other way available.
However if you really want to gamble and win, the only method would be short bursts, like go in there, gamble all, win and leave. If you leave while you are ahead and not gamble again, you may actually end up profiting but that is the only way you could profit.