I don't believe in boycotts as such, although I'll never pre-order any game (been stung too many times). The moral stance is a personal thing, and you could still buy the game without supporting that. Whilst it appears very ill judged, I don't feel that strongly that I wouldn't purchase the game.
I'll wait to see how it pans out. Reviews will dictate whether I buy it or not. It's a pity the developer has went off on a tangent to maximise the cash flow, so hopefully they'll realise when no-one is buying the loot crates that it's been an embarrassing waste of their time.
This is actually an interesting part of the evolutionary process. If people do buy the DLC and loot crates etc.. then eventually other developers will follow suit. Similarly, if the game bombs because of it then it'll be a costly lesson for them to learn.