[Non-Sequitur]

For them to admit the correctness of you explanation would be to admit that Lincoln invaded a foreign country and that Lincoln exceeded his constitutional authority.

Why would we admit something as completely asinine as that? Lincoln didn't invade a foreign country and he didn't exceed his constitutional authority.

[4CJ]

Why would we admit something as completely asinine as that?

Your assertion is that the President - by meeting with anyone - establishes diplomatic relations? Congress by law establishes such relations. Anything else is simply a meeting.

Lincoln didn't invade a foreign country and he didn't exceed his constitutional authority.

The blockade extended - by international law - official recognition of a foreign government.