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Those abstract theories explain why for instance this doesn’t make any sense:

And here, PUA skills come down to being persistent and having social savvy to isolate the girl while guarding off her cockblocking friends and other dudes.

If you do this with a girl who is not attracted to you at all, you end up loosing time “guarding off her”. You do agree that attraction cannot be created right?

Another thing, we can’t just equate sexual attraction with sex because there is plenty of secretaries fucking their bosses and agents.

Yes we can equate it, because the examples you gave are more like prostitution. It doesn’t count. MOREOVER, how do you know that those secretaries were not attracted to their bosses?? (at least many of them could be, and some small part could be regular prostitutes in the office)