If you turn them down, that reduces their talent pool.
If you turn them down you are no longer responsible for the suffering caused by their products.
If enough people turn them down they will have to reassess their approach.
Ultimately, doing something evil just because you decide someone else would do it if you didn’t, so you might as well benefit doesn’t make it any less evil of you to do that thing. In fact, it makes it worse.
The flaw is explained in what I just said.
Ultimately, doing something evil just because you decide someone else would do it if you didn’t, so you might as well benefit doesn’t make it any less evil of you to do that thing. In fact, it makes it worse.