That's exactly the point though. You are choosing to boycott the extremely small, niche publisher who does business with THQN rather than the larger, more important businesses who do business with them, because the effect on you is minimal. Despite the fact that the business relationship between THQN and LRG amounts to a grand total of one game and one tweet right now, compared to the hundreds of already released and upcoming titles that represent the business relationship between THQN and Sony, Microsoft, Nintendo, Valve, and Epic.
Essentially, you are saying "my values are x so long as doing x only slightly inconveniences me". Which is, frankly, bullshit, especially when those business relationships are way more important to THQN's continued success than their one game deal with a tiny company that small print runs.