We're talking about ways to systematically lose money, which means you would need to systematically throw yourself into the front-runner's path

Simply making random trades in a market where some participants are front runners will mean that some of those trades are with front runners where you lose money.

I would call that systematically losing money. On the other hand it doesn't give you an ability to forcast where you will lose the money to make the opposite bet and win money.

Do you think our disagreement is about the way the EMH is defined or are you pointing to something more substantial?