That must be the highest cost that you outline which will be unsustainable for spammers. Filters work and Bitcoin Knots has the filters.
Discussion
It's the highest cost no matter what You're just describing a free market for fees. You really don't know what the f*** you're talking about...
Don't get mad, just study Bitcoin more.
Dude you've got to stop telling me to study Bitcoin when it is you that does not understand the implications of what you are pushing just for the simple fact you want to virtue signal your altruism. You realize you are parroting policy that could centralize mining further? No you don't. Study Bitcoin. You clearly don't understand what concensous even is.