Sorry, I didn't mean to phrase my comment so harshly! I was just thinking that it's odd to make a claim that sounds so obvious that everyone should agree with i

Sorry, I didn't mean to phrase my comment so harshly! I was just thinking that it's odd to make a claim that sounds so obvious that everyone should agree with it. But really it does make sense to state the obvious just in order to establish common ground, especially when everyone is so confused. (Unfortunately in this case your statement was so obviously true that it wrapped around; everyone apparently thought you must have meant something else, and misinterpreted it).