I absolutely think the user is unreasonable in this context. what about people who actually enjoy discussing other people's conflicting opinions? (maybe hard to believe that exists any more, even moreso on facebook, but still...) how would you allow this positive engagement to keep happening but avoid OP's example of negative engagement?

the tools are there on facebook to control the content of your feed to quite an extent. if you don't use this and demand that facebook change its system to adjust the feed for everyone based on your personal tastes, yes I think that's entitled.

not saying I like or even use Facebook, but still.