Noun
mutantkind (uncountable)
(chiefly fiction) Mutants, collectively; the race of mutants.
Acting as a supplement to it fleshed out the events of that book as well as telling a story of the past, present, and futures of mutantkind. Source: Internet
All the world's mutants have gathered on the living island of Krakoa, including some of the most dangerous villains in mutantkind. Source: Internet
He attempted to use humor to keep everyone's spirits up even though he believed that the situation was helpless and that the X-Men were living in the last days of mutantkind. Source: Internet
The Sentinels eventually expand their targets beyond mutants to baseline humans based on the logic that they have the potential to produce mutant descendants, culminating in a dystopian future where most of humanity and mutantkind have been wiped out. Source: Internet