Those are some better points. Though the breeding can be negated fairly easy.....except in Jurassic Park. I also agree on not enough pros to do it. That is why I have never tried it.
I am just not one to say that somebody can not do something. If they do this well I do believe it can work and we have proof that it can so it is not crazy talk. Nothing is without risk though and tomorrow is not a guarantee for us or our animals.
I'll ask this,
For every time something went wrong with a co-hab situation......how many were fine?
Kinda takes me back to the possibly swallowed substrate thread. Something could go wrong but how many times does it. I think the word used was "rare."
Then going back to other animals these same things can again happen with others, yet an acceptable way of keeping them is in a community. I have had chickens kill other chickens, rabbits kill rabbits. So despite what anyone else thinks I believe I have a valid reasoning to discuss other animals within this topic.