Here's what craft brewers should be fearing: ABInBev decides to make a version of the number one beer in the country: Pliny the Elder.
If the management decided to make a DIPA to rival Pliny, they could do it. They employ great brewers. (Before you tell me they don't, remember that Mitch Steele and Dan Carey both worked for Budweiser.) They have amazing technology. And they could make an amazing DIPA.
That's what I would do if I were in charge.
Who would buy it though?
I would venture a guess that 90% of people who buy Pliny know who makes it and where it comes from. It AB-Inbev made it, those 90% would not be loyal to them and who in their current market would buy something like that? I just don't see that as a plausible option.
If it was good, I would drink it. I would know it came from the plant in Houston, just a day's drive away.
Frankly, I don't get the whole "hate AB and MC and everything they make" mindset. I guess it's like the Mac and Linux people hating Microsoft. It's "I'm cooler than 92% of the beer drinkers in the country." Or, "I live in a cooler state than the other 49." I don't drink AB and MC beers generally. I like Budweiser, I like Coors Light. There is a time and a place for any beer.
Except Lone Star Bock. That stuff's nasty.