I feel like i need to explain my point of view due to this being pretty much the most important Suspect from the BW 2 era, after seeing how much was gene's impact on the metagame.
I dont think genesect is broken because,even though it is overcentralizing, it is a vulnerable pokemon that actually added variety to the metagame, tho centered around him. N
Hax is actually the game deity teaching you the value of effort and humility, and, without it, we will be just playing another chess game.
NOTE: if somebody EVER haxes you and say he embraces it, just chill, take the nearest glass and break it, and remember: they're only dickriders.