Basically everything that has a smell is a VOC. If it wouldn’t be volatile it wouldn’t have a smell. Something being volatile alone doesn’t say anything about it’s toxicity.

Something being organic also doesn’t say anything about toxicity. Your whole body is made out of carbon. Something being an organic compound doesn’t say anything about it’s reactivity either. That’s simply not how it works.

Something being a polymer also doesn’t say anything about it’s toxicity. Proteines are polymers. DNA is a polymer too and neither are particularly toxic. Polymer just means that’s its a structure that repeats itself. Poly = multiple, mer = parts.

Everything you said doesn’t say anything about toxicity. Toxicity depends on the individual compound. Even small alterations can make a harmless molecule toxic.