@newhere-
How does not being an expert in eruvin= I don’t know the facts, but I know I’m right and you’re wrong.???
Are you saying you are an expert in eruvin? oh I’m sorry, I didn’t realize that one of the few experts in eruvin spends his time in the YWN CR.
Are you saying the whole concept of eruvin is a kula? Because that’s all I’m trying to say. And if you are actually saying that, maybe it’s time to open up any halacho sefer that has to do with eruvin.
And please don’t throw out “most rishonim and “a Rov” without bringing down sources.