>>40409295 (OP)that's a really hard question. I don't know. Anything can technically be loved. Statistically speaking, there are WAYY too many people on the planet for one of them to be "unlovable".
Unless you mean "what makes someone a bad person." then I'm not sure how to answer that question.
what makes someone unlovable 'TO ME'? Well, if they're trying to kill or hurt me, then I would consider them unlovable I guess.
This seemingly simple question is such a mindfuck.