In case it makes you feel better, either from misery-loves-company or from the similar-situation-on-other-side perspective, I feel very similar to you in terms of social isolation and I'm almost entirely carnivore with basically 0 plant consumption.

Sadly I think part of this is human nature. Doing anything so different from status-quo-of-your-social-circle is very very very isolating. Don't get me started on trying to plant flowers instead of a lawn. :D