Hey there, Macs can certainly burn BDs despite the fact that Apple hasn’t chosen to officially integrate usage yet. You just need to buy yourself an external BD burner, which is a relatively affordable and worthwhile thing these days. Then, you just mux the Despecialized MKV into a BD structure (BDMV, Certificate folders) and, finally, burn it with a data disc.
For the record, I’m a Mac user myself and have burned many discs successfully.