But are the users not a part of the economic majority?
Well, you have not defined what you mean by the term 'users'. But if I may speculate that you are referring to bitcoin transacters that are neither merchants nor miners, the answer is 'of course they are
part of the economic majority'.
The issue that I have had with your ongoing position is your confused notion that a count of non-mining validators has some relationship with the economic majority.
Now you seem to be introducing another confused notion that a count of non-mining validators has some relationship with the count of users? Not sure if this is really what you mean, but again, no.
Was the failure of 2X not a lesson that the users can also impose themselves on the network?
In that 'users' (again, you have not defined the term) are a proxy for the economic power of those users, yes - but only in relation to the economic power of other entities in the system. And again - non-mining validators are not a measure of 'users', for any logical definition of the term 'users'.
Plus what is the difference of the nodes from the other nodes' point of view?
None. Well, they can be, if the operator goes in and edits bitcoin.conf. Or is a non-mining validator is cast out of the allowed peers due to dishonesty. But by default, all non-mining validators treat other potential peers identically.