I mean that politics is essentially about power. To know how to gain power over others is to practice politics. 

Sure, if you start with a nonsensical definition you can conclude what you want.

Politics are about the structure of society, it's not a question of power. Anarchy is political because it aims to change the way society works.

When I say “Hi” to my best friend Aly, and she says “Hi” back, are we engaging in politics? Yes, I identify as male; and she, female. I also have more money, and she has less. However, does she reply to me with a kind hello because I am empowered over her? 

And this followup argument is pretty obviously bullshit, but it's easy to conclude bullshit when you define key concepts of the argument in a nonsensical way.

Software is very much political, especially open source software. It is taking a stance on social subjects, whether it wants it or not. I maintain that I never saw arguments refusing to admit the political aspect of things, that weren't built on a fascist basis.