Word or expression to describe the tendency that one have to believe that everyone is like them or the act of doing it

This is something I noticed among some people I discuss with. When some opinion relative subjects are raised, they tend to imply that, according to their "normality", everyone is behaving like them or have the same opinions on the matters as they do.

The following is an example of a conversation

Acquaintance: We prefer food A. Food A is much better than food
B which is clearly more expensive and not nearly as good.

Me (the tendency): Please, could you stop being (a)/(an) ____? Not everyone have all have the same taste, hobbies and point of views as you do.

One expression I thought about which kinda describes the act of doing that is picturing one self in the others, but it isn’t exactly what I am looking for, as it is closer to a parent seeing one self in their child.

I also thought about enforcing your point of view, but that is closer to forcibly convincing your correspondent during an argument.