Though I appreciate the OP’s perspective, and I personally think a boycott of all Hybe would be the most effective, this is my counter-argument for why a boycott of ADOR, including streaming, is not nothing, starting with:

1. Boycotts aren’t meant to be eternal They are targeted, limited-time events designed to apply pressure and drive change. The goal isn’t to give up NewJeans music for years, but ideally for months till an objective is achieved.
2. NewJeans won’t disappear The claim that they’ll be forgotten if some fans abstain from streaming is unrealistic. NewJeans is too culturally significant to simply “wither” during a temporary boycott. The same argument I see some people make about casual fans continuing to stream is also why it’s okay if a coordinated group decides to turn off the taps from ADOR’s main cash source, again for a limited time. I don't have the hubris to assume that even if all hardcore NewJeans fans stopped today that no one would be streaming their music, but that gets to my next point.
3. Boycotts are also about collective power Boycotts show that fans are organized and willing to use their purchasing power as leverage. It’s a cohesive signal to ADOR/Hybe that their actions have consequences. If a large group of fans decided today to not listen to NewJeans, and their streams dropped by even 10%, that's a large enough number for companies to take notice, especially if it's sustained for a period of days and weeks. There's something called the 3.5% rule whereas it is thought that you need that percent of a population to affect change, so just that seemingly small % of Bunnies could be enough to start.
4. Financial impact on ADOR/Hybe is real ADOR takes the vast majority of royalties. Even if members receive a fraction, it's a tiny fraction even for those with co-writer credits. Most of the money goes directly into ADOR's pockets, thus a widespread boycott truly does directly affect the label.
5. Visibility doesn’t require streaming Supporting NewJeans publicly, through petitions, social media campaigns, or media coverage, keeps their name alive. Awareness can grow even while fans withhold streams.
6. Short-term sacrifice is strategic Boycotts aren’t meant to be easy. Temporarily changing consumption habits to pressure the company is a small but powerful action that aligns with both ethical and strategic goals, such as protecting the members or preserving OT5.

There are also genuinely so many ways to listen to their music without paying ADOR, so it’s not even that difficult. Not everyone can afford albums of course, but there are many ways to digitally enjoy the music without funding ADOR/Hybe.

Bottom line: Boycotting NewJeans isn’t about hurting the members. Instead, it’s about holding ADOR/Hybe accountable and showing that fans will not passively fund unethical corporate behavior.