Yes, you are.
Your conversation won’t go anywhere, the libertarian hit the off switch way back.
Libertarians like to make a veiled feint to the left on a thread, and then they go into their protective closed loop, and won’t defend their liberalism openly, the discussion then becomes one where they despise you, are arguing passionately against you and conservatism, yet they won’t say anything, it is really bizarre.
You know that you are arguing with someone who is promoting social liberalism, but they are too guarded to speak openly and defend their politics, usually they just start a sort of chant, usually repeating the words constitution and liberty over and over, with no connection to the specific political issues, or candidate, or election that they were promoting, or in a couple of cases GOD, over and over, while opposing God, in an effort to neuter social conservatives and Christians and steal from them language that still means something to conservatives.
They will argue at you for days without daring to ever say anything openly, it makes for bizarre threads, but they are promoting ideas and politics that they know are troll positions here, so they play an ugly and disgusting troll game to spread their message of moving left, and trying to stay between the lines.