You dont seem to understanding peering if you are honestly going to sit here and state that backbone traffic that is being delivered to the ISP needs to be equitable. 1.) ISP traffic is very much one way no matter how you try to claim it is a 2 way. The asynchronous connections and ban on servers assures this 2.) Regardless of that it is the ISP customers requesting the traffic and it is 100% the responsibility of the ISP to maintain their network to accommodate THEIR consumers. If they can't do it, then they need to upgrade or find a way to have less consumers requesting traffic.
You claiming anything else is sheer stupidity or ignorance of the process on your part or a clear attempt on your part to deceive.
You really have a 10 year old view around how the Internet is put together. The old tiered hierarchy is long gone and most large ISPs have a blend of domestic, international and regional infrastructures. They also have a blend of customers both residential, commercial and large content.
I can see why this taints your views around residential asymmetry, but it really is outdated.
That is not relevant in any way. Regardless of how big they are and how robust their network/services are they are still 100% responsible for making sure their networks are maintained to accommodate their consumers regardless if is residential, commericial or large content.
If their network can't handle their consumers (regardless of type) then they need to either upgrade it or find a way to reduce their consumers so the load is less. PERIOD. There is no 2 ways about it.