The word "unwarranted" means that something is not justified or necessary, or lacking a valid reason. It implies that there is no legitimate evidence or basis for a particular action or belief. Full definition
A reminder that we're not all the same is not unwarranted in general — because a dress that looks dowdy on me at 5» 2 ″ since it hangs past my knees can look slutty (sorry, can't think of a nicer word) on her since it would be halfway up her thighs. (corporette.com)
As a consequence we have often wavered between one and the other, and the people have been left either with unwarranted expectations of divine intervention in their behalf or with a remote and essentially deistic God to whom — or perhaps more accurately, to which — it has seemed futile to turn in time of need. (religion-online.org)
The Climate Change denier - sceptics also have a modus operandi that seeks to (a) take attention away from important emerging truth by making unwarranted attacks on people and research and (b) focus attention on disputed details to stop people seeing the wider picture. (realclimate.org)