The argument is that the explanation was valid, and whether or not you found it valid, is more to do with your inability to get it. Now, this isn’t saying anything about you, because you might get it. So, the “you”, is not the particular you, but rather “one such that would meet the requirement”. But hey, you do you.
You wrote a lot of words, but your argument is unclear.
Don’t conflate an argument being unclear, with you having trouble understanding it
Don’t assume anything about anyone you’ve just met.
I’ve made no statement about you. So, your response is a bit weird.
That was a “you” statement.
The argument is that the explanation was valid, and whether or not you found it valid, is more to do with your inability to get it. Now, this isn’t saying anything about you, because you might get it. So, the “you”, is not the particular you, but rather “one such that would meet the requirement”. But hey, you do you.