Why are you afraid of that? It is a best case use for a botnet. Securing freedom rather than causing damage. Or is it just for your personal income that will be affected?
I am afraid that the tail emission wont be enough to secure the network, mining might be unprofitable for peoe that have to pay for electricity and then only botnets will mine it. Botnets can be both good and bad, the disadvantage is that mining for ordinary people will be less profitable.
I do think giant asic farms in china mining 70% is a lot worse of course.