If one tried to live by the principle that we can never make judgments one could not live life. The concept is ultimately incoherent.
Ultimately unless he can conquer, enslave me, and force me to submit to his morality, then it's all hot air from my perspective. I will not attempt to pretend I know anything about his power over others, probably because I don't care to know.
Basically they're just all babbling idiots which I should ignore.
I'm generally more approachable when people don't speak down to me (and others). Dispensing with his absolute conviction about morality would be a start of someone I might be willing to absorb and contemplate. If he could recognize that what he is doing is analogous in some way to the very left he despises, might indicate to me that he is a smart and observant person with sufficient humility about the futility of absolutes.
I think generally most people just ignore and don't even bother to give such feedback. I should probably adopt that more invisible reaction.
In short, politics and religion is a battle over top-down control. Rather I just accept the world is diverse and I'm not going to be able to form a society of like-minded people. Ultimately economic arguments are what matters. I would probably be more interested if these dudes were telling me how I can be more competitive (and obviously gaming the collective will incentivize me to become less competitive).
I would be more interested perhaps if he was able to argue that conservatives are going to dominate the earth and so I better join them or else. I doubt such a convincing argument could be made successfully. Thus it's all rhetoric to play in the propaganda game of politics. The leftists tell me that I must adopt their morality or else they'll have the government destroy me. The conservatives tell me I have to adopt their morality else I will go to Hell. Basically they're both trying to intimidate me into joining their dysfunctional cults.
The don't throw your pearls at swine scripture comes to mind. Politicking is throwing feces at swine. If they had pearls, they'd be more circumspect.
I realized while writing this that I am not right, left, Libertarian, nor even min-anarchist. I'm apolitical. I'm a technologist. And I'm a man.