It's funny that I do not know what other three ETH killers are other than EOS :) mentioned in that picture. I know four new ETH killers though that replaced these four.
I have read many articles where experts mentioned why high fees are always associated with high security. It is the premium that you pay for a premium service/product. And, I really liked the description where you mentioned how capital is flowing to other chains and how they can co-exist.
The pie that these chains are sharing is getting bigger every time someone is bringing in $$$ from the legacy system.