This is always the same age-old discussion: Can you separate the art from the arists? And unsurprisingly, different people have different views on it. Even if you disagree, you should be able to understand why people don't want to use a product if their usage of that product makes the owner and CEO more powerful (and they think them being more powerful is a bad thing for humanity).
Edit to add a simple example:
Musk's wealth is mostly tied up in Tesla -> You think Musk uses his wealth to wield political power, political power that makes the world a worse place -> You still think Teslas are good cars -> Even though you think that, you don't want to spend your money on buying a Tesla, because this will make Musk more wealthly -> Start at the beginning