This! A game is a game. There are often good alternative that give as much entertainment. If a publisher doesn’t want you to play, that’s their problem, they won’t get money from you.
Yes, but honestly, I find that games enforcing incompatible AC are often poorly developed games. The latest that disappointed me was EA WRC. It was quite good, but the gameplay was less interesting that Dirt Rally 2, for exemple, and since they enforced AC, they also started to deploy DLC, and destroy the game. The lesson was to never ever buy something from Electronic Arts (the last time was more than 10 years ago for me). And kernel level anti-cheat is NO GO on my computer. It doesn’t matter if the game is awesome or not, I disagree with the fact that a game company has root access on my computer just for entertainement.
20 years for me (even thought I used Windows for a year in there). There’s no point in using Windows at all, unless you’re forced at work, or stuck because you don’t want to learn an alternative tool.