A person willing to employ pickup artistry or similar is revealing their opinion that women do not deserve full agency and/or the chance to make informed decisions in this arena, purely because the Artist disagrees with their probable decision.

Is a person willing to take a class on public speaking revealing their opinion that audiences do not deserve full agency or the chance to make informed decisions about what they're presenting in a speech? Should they not practice to make the best possible impression?

I realize there are schools of PUA that are based on trickery. However, the "direct", "natural", and "inner" schools of PUA studies deal only with what makes men more attractive to women, generally. That information is unlikely to be useful to you as a bisexual woman, but it is certainly not about treating women as objects. Some teachers (most notably Johnny Soporno) are quite explicitly about emancipating women from oppressive societal constructs around sexuality (such as the idea that having sex with more than one partner means a woman has no self-worth).

Still other teachers (e.g. Juggler) teach men how to make emotional connections in conversation -- to reveal themselves better and to learn more about a woman than just "what do you do" type chitchat. And others (e.g. Tyler of RSD) emphasize learning how to provide a woman with a safe space and positive energy. (I know that sounds kind of woo-woo, but actually explaining it in a reductionist way would take way more time and space than I want to spend here.)

None of these things are any more offensive or objectifying to women than public speaking classes are to audiences. They're teaching men to be better men, not how to "control" women.