Right...it's a matter of opinion - all communities are right unless they can be convinced by force that they are wrong. Might makes for survival of you and yours, and, coincidently, your moral precepts.
Might makes no distinction between goodness and power, and only means that you can FORCE your morals on someone else - but only outwardly since you cannot control one's thoughts. Please tell that to the homo-fascists and femi-fascists and islamo-fascists.
This isn't any different than your argument that the existence of sociopaths means there can't be natural morals, and it makes just about as much sense. You cannot force morals on someone else: norals are inbuilt restraints, you can only force your will on someone else. The existence of people with morals different from yours equally does not demonstrate that natural morals don't exist.
I am curious as to how homo or fem fascists plan to force their will on you? Do you think they plan to make you have sex with them at gunpoint?