Don't use them. CG obviously doesn't care how much we complain or what feedback we give. They only care about numbers. If we complain but still use them, what's their incentive to remove or even change them? Actions speak louder than words.
I tried them. I don't like them. I've stopped using them. I've removed them from my Squad Arena team and my GAC defense. I ask my GAC opponents to do the same.
Sure whales are going to whale on them and use them. Fine. Let them fight each other. I'm going to lose to someone who whales on datacons anyway. There's no way I'm putting any money or other resources into temporary upgrades.
Personally, I think it's insulting and disrespectful to the player base to expect us to rent upgrades for a mobile game.
Even if CG won't get rid of datacons, we can still be civilized as a community and not use them.
Be the change you want to see.