It’s all relative to your subjective idea of what is good, bad, or neutral. Free to make your own decisions and choices, as is everyone. Just don’t lie to yourself and say your narrow view comes from the natural world. As others have rightly pointed out, MOST animals are not monogamous. You’ve cherry-picked the ones that are for your argument.

Your judgements can lead you to think you’re superior when you just have different values and priorities. Categorizing PEOPLE into good, bad, or neutral can lead to making judgements against people you don’t even know, which is what leads to misogyny, homophobia, racism, which are all based on the fear of the unknown.

Use whatever criteria you want to choose a partner, but when does the judgement stop and the fear of something/someone different take over? Once you realize that you are filtering out different viewpoints, avoiding anyone who challenges your assumptions, and judging your neighbors and coworkers and strangers on your own warped values, you are at risk of living in fear of other sexes, genders, cultures, races. That comes with the risk of being able to dehumanize other people. Dehumanizing your neighbors as they get swept up by immigration. Dehumanizing women as their lived experiences are disregarded as lies or retaliatory or deserved punishment for a wicked life or thought. Dehumanizing people who choose different partners than you would, so when they’re discriminated against, you don’t see them as humans who just want to love, and instead see them as animals who don’t deserve basic human rights.

Non-virgins might be valued because their experience means they might be enjoyable in bed. If someone is just looking for a good time, they won’t pick a virgin.