Can you back this up with a list of merchants/exchanges who will not go with Classic? (links plz)
Do you have a list of every merchant (there are thousands) that will update to Classic in a 30 day time frame? You don't. I can't create that list either. Until someone states that they are willing to switch, it is reasonable to assume that they won't (or won't in time).
I take the opposite opinion of you.
I think it is reasonable to assume that most merchants who are running a full node
will switch in time, (regardless of whether or not they state they are willing to switch.)
They will follow the miners and see that 2MB is not only reasonable, it is long overdue.
Anyway, I really question what percentage of merchants are really running their own full nodes.