Dear Bart,
we have actually created our new course about Bitcoin algorithmic trading, which will be up on the website very soon. It includes 99 Robots inside and it brings many opportunities.
Hard to answer your question, but I think you are pretty much right. The question is that when we use Bitcoin Algorithmic trading on Meta Trader, we trade with the broker and most of them nowadays are market makers. Which means that we really do not affect the price of the Bitcoin at all. I hope it makes sence.
Cheers