“I have specifically and repeatedly declared them as humans.”
Per your definition someone that does not have the same rights as humans is subhuman.
“You deemed biker gangs sub humans, which by definition do not have the same rights as humans.”
Ergo, if you have less rights than other you are sub-human.
These things can all be accomplished without defining a group as sub-human -- something you explicitly did.
My way is how the Republic was founded; your way is tyranny.