Ironically this would have been my sentiments/thoughts/feelings many, many years ago. I was 100% alright being self-quarantined, alone, embracing loneliness and stuff like that.
Things change. People change. It's quite horrible for me now.
I think "weak" is a wrong thing to say because we're not meant to be solitary creatures; we're not red pandas who spend most of their life alone. Humans are naturally social beings.
Others might see those that are weak to be the people with pre-existing health conditions or old of age; this is also an unfair perspective. Try to have empathy for others for the sake of your own mental well-being.
I can really dig someone who can be totally fine mentally alone in their head for years on end, man, I really can so I don't think less of you for sharing your opinions. Just some food for thought, hope you are well.