User blog comment:Looperreallyreallysucks/Pure Evil Discussion - Avengers: Endgame/@comment-1705775-20190509231049/@comment-1705775-20190509234007

plus did I even say that this was the thing that disqualified him? no - I simply noted that he died honorably while MOST PEs don't.. thus it makes his case weaker than it already was.. anyways, the general view is Thanos in MCU is not PE, they built him up as a sympathetic character for years and years, even with time-line alterations I highly doubt we're meant to think Thanos became completely devoid of any and all traits that may save him from PE status.

A lot of folk compare Thanos and Darkseid but one thing that tends to separate them is Thanos often wins, gains immense power then tosses it away - in comics it is due to boredom etc.. in MCU it is due to anger at not being able to make the universe as a whole understand his view :  there's no telling what the new universe would of been like under his rule.. I imagine it'd be an endless loop just like Infinity War.. he'd "retire" again and again, only to reshape the universe again and again when "retirement" failed.

in the end we just don't know what would of happened with Thanos.

Ego, for what it is worth, seemed a much more obvious PE.. since it was pretty obvious the end result of his goal would be complete and utter destruction of everything for no reason oher than Ego saw everyone else as inferior and unworthy to exist.