> Technology created this problem.

...No. Your adoption of technology/social media into every facet of your life created this problem.

I work in tech and I am not available when I'm not working. I don't participate in social media, but my social life is thriving during a pandemic.

> Choosing to not be available is effectively making yourself a social pariah if your social circle is otherwise highly available.

This sounds like a problem between you and your social circle. My circle doesn't make me feel like a pariah due to my availability. I suspect it has to do with me setting expectations and exercising discipline. You can do the same thing (though you might have to make changes to your social circle).