Ruger is long since not the same company that rolled over on the locks and magazine capacity, so I'm not too worried about funding them. Coonan is still on shaky ground with Evolve, as far as I'm concerned, though. As for Troy, I'm not taking off the parts before this all went down, but I haven't bought any new or used Troy stuff since, and there's worlds of gear out there that don't go toward funding murderers.
To each their own, but not buying from people that even peripherally support gun control, particularly when the product IS firearm-related, seems like about the least I can do.