̶D̶r̶u̶i̶g̶,̶ ̶K̶i̶n̶g̶ ̶o̶f̶ ̶S̶e̶m̶a̶n̶t̶i̶c̶s̶ ̶a̶n̶d̶ ̶W̶o̶r̶d̶p̶l̶a̶y̶ ̶a̶n̶d̶ ̶B̶e̶i̶n̶g̶ ̶A̶ ̶S̶h̶a̶d̶y̶ ̶B̶i̶t̶c̶h̶,̶ ̶i̶s̶ ̶n̶o̶w̶ ̶P̶r̶i̶m̶e̶ ̶E̶t̶e̶r̶n̶a̶l̶ ̶a̶n̶d̶ ̶i̶n̶ ̶c̶h̶a̶r̶g̶e̶ ̶o̶f̶ ̶t̶h̶e̶i̶r̶ ̶s̶o̶c̶i̶e̶t̶y̶'̶s̶ ̶o̶v̶e̶r̶a̶l̶l̶ ̶d̶i̶r̶e̶c̶t̶i̶o̶n̶ ̶a̶s̶ ̶w̶e̶l̶l̶ ̶a̶s̶ ̶n̶o̶w̶ ̶h̶a̶v̶i̶n̶g̶ ̶c̶o̶n̶t̶r̶o̶l̶ ̶o̶f̶ ̶t̶h̶e̶ ̶M̶a̶c̶h̶i̶n̶e̶.̶ ̶M̶u̶t̶a̶n̶t̶s̶ ̶a̶r̶e̶n̶'̶t̶ ̶N̶A̶T̶U̶R̶A̶L̶L̶Y̶ ̶c̶l̶a̶s̶s̶i̶f̶i̶e̶d̶ ̶b̶y̶ ̶t̶h̶e̶ ̶M̶a̶c̶h̶i̶n̶e̶ ̶a̶n̶d̶ ̶E̶t̶e̶r̶n̶a̶l̶s̶'̶ ̶b̶i̶o̶l̶o̶g̶i̶c̶a̶l̶ ̶p̶r̶o̶g̶r̶a̶m̶m̶i̶n̶g̶ ̶a̶s̶ ̶f̶i̶t̶t̶i̶n̶g̶ ̶t̶h̶e̶i̶r̶ ̶u̶s̶u̶a̶l̶ ̶p̶a̶r̶a̶m̶e̶t̶e̶r̶s̶ ̶f̶o̶r̶ ̶w̶h̶a̶t̶ ̶c̶o̶n̶s̶t̶i̶t̶u̶t̶e̶s̶ ̶a̶ ̶D̶e̶v̶i̶a̶n̶t̶ ̶o̶r̶ ̶E̶x̶c̶e̶s̶s̶ ̶D̶e̶v̶i̶a̶t̶i̶o̶n̶.̶ ̶B̶u̶t̶ ̶i̶n̶ ̶p̶u̶r̶s̶u̶i̶t̶ ̶o̶f̶ ̶a̶n̶ ̶a̶g̶e̶n̶d̶a̶ ̶h̶e̶ ̶c̶a̶n̶ ̶s̶h̶e̶p̶h̶e̶r̶d̶ ̶E̶t̶e̶r̶n̶a̶l̶s̶ ̶s̶o̶c̶i̶e̶t̶y̶ ̶t̶o̶w̶a̶r̶d̶s̶,̶ ̶i̶n̶ ̶o̶r̶d̶e̶r̶ ̶t̶o̶ ̶k̶e̶e̶p̶ ̶t̶h̶e̶m̶ ̶b̶u̶s̶y̶ ̶a̶n̶d̶ ̶d̶i̶s̶t̶r̶a̶c̶t̶e̶d̶ ̶a̶n̶d̶ ̶n̶o̶b̶o̶d̶y̶ ̶t̶h̶i̶n̶k̶i̶n̶g̶ ̶a̶b̶o̶u̶t̶ ̶o̶v̶e̶r̶t̶h̶r̶o̶w̶i̶n̶g̶ ̶h̶i̶m̶ ̶o̶r̶ ̶o̶u̶s̶t̶i̶n̶g̶ ̶h̶i̶m̶ ̶f̶r̶o̶m̶ ̶h̶i̶s̶ ̶p̶o̶s̶i̶t̶i̶o̶n̶ ̶a̶s̶ ̶P̶r̶i̶m̶e̶ ̶E̶t̶e̶r̶n̶a̶l̶ ̶(̶s̶o̶m̶e̶t̶h̶i̶n̶g̶ ̶t̶h̶a̶t̶ ̶o̶t̶h̶e̶r̶w̶i̶s̶e̶ ̶w̶o̶u̶l̶d̶ ̶b̶e̶ ̶a̶t̶ ̶t̶h̶e̶ ̶t̶o̶p̶ ̶o̶f̶ ̶A̶L̶L̶ ̶o̶f̶ ̶t̶h̶e̶i̶r̶ ̶T̶o̶-̶D̶o̶ ̶L̶i̶s̶t̶s̶ ̶o̶n̶ ̶a̶c̶c̶o̶u̶n̶t̶ ̶o̶f̶ ̶t̶h̶e̶ ̶p̶h̶e̶n̶o̶m̶e̶n̶o̶n̶ ̶k̶n̶o̶w̶n̶ ̶a̶s̶ ̶'̶L̶i̶t̶e̶r̶a̶l̶l̶y̶ ̶A̶l̶l̶ ̶T̶h̶e̶ ̶O̶t̶h̶e̶r̶ ̶E̶t̶e̶r̶n̶a̶l̶s̶ ̶H̶a̶t̶e̶ ̶T̶h̶i̶s̶ ̶D̶u̶d̶e̶'̶)̶.̶.̶.̶.̶h̶e̶ ̶d̶e̶l̶i̶b̶e̶r̶a̶t̶e̶l̶y̶ ̶g̶o̶t̶ ̶t̶h̶e̶ ̶M̶a̶c̶h̶i̶n̶e̶ ̶l̶o̶o̶k̶i̶n̶g̶ ̶f̶o̶r̶ ̶a̶n̶y̶ ̶b̶e̶i̶n̶g̶s̶ ̶w̶i̶t̶h̶ ̶e̶v̶e̶n̶ ̶T̶R̶A̶C̶E̶ ̶a̶m̶o̶u̶n̶t̶s̶ ̶o̶f̶ ̶D̶e̶v̶i̶a̶n̶t̶ ̶g̶e̶n̶e̶s̶ ̶(̶w̶i̶t̶h̶ ̶t̶h̶i̶s̶ ̶i̶s̶s̶u̶e̶ ̶a̶l̶s̶o̶ ̶c̶l̶a̶r̶i̶f̶y̶i̶n̶g̶ ̶t̶h̶a̶t̶ ̶D̶e̶v̶i̶a̶n̶t̶s̶ ̶h̶a̶v̶e̶ ̶p̶l̶a̶y̶e̶d̶ ̶a̶ ̶p̶a̶r̶t̶ ̶i̶n̶ ̶t̶h̶e̶ ̶e̶v̶o̶l̶u̶t̶i̶o̶n̶a̶r̶y̶ ̶p̶r̶o̶c̶e̶s̶s̶ ̶o̶f̶ ̶p̶r̶e̶t̶t̶y̶ ̶m̶u̶c̶h̶ ̶a̶l̶l̶ ̶s̶u̶p̶e̶r̶p̶o̶w̶e̶r̶e̶d̶ ̶E̶a̶r̶t̶h̶ ̶b̶e̶i̶n̶g̶s̶)̶.̶.̶.̶s̶p̶e̶c̶i̶f̶i̶c̶a̶l̶l̶y̶ ̶b̶e̶c̶a̶u̶s̶e̶ ̶D̶r̶u̶i̶g̶ ̶w̶a̶s̶ ̶l̶o̶o̶k̶i̶n̶g̶ ̶f̶o̶r̶ ̶s̶o̶m̶e̶t̶h̶i̶n̶g̶ ̶h̶e̶ ̶c̶o̶u̶l̶d̶ ̶s̶p̶i̶n̶/̶s̶c̶a̶p̶e̶g̶o̶a̶t̶ ̶a̶s̶ ̶a̶n̶ ̶e̶n̶e̶m̶y̶ ̶t̶o̶ ̶u̶n̶i̶t̶e̶ ̶t̶h̶e̶ ̶E̶t̶e̶r̶n̶a̶l̶s̶ ̶i̶n̶ ̶g̶o̶i̶n̶g̶ ̶a̶f̶t̶e̶r̶.̶ ̶
̶
̶A̶s̶ ̶i̶s̶,̶ ̶m̶u̶t̶a̶n̶t̶s̶ ̶l̶i̶k̶e̶l̶y̶ ̶d̶o̶n̶'̶t̶ ̶c̶o̶u̶n̶t̶ ̶a̶s̶ ̶D̶e̶v̶i̶a̶n̶t̶ ̶E̶N̶O̶U̶G̶H̶ ̶t̶o̶ ̶t̶r̶i̶g̶g̶e̶r̶ ̶t̶h̶e̶ ̶E̶t̶e̶r̶n̶a̶l̶s̶'̶ ̶b̶i̶o̶l̶o̶g̶i̶c̶a̶l̶ ̶m̶u̶r̶d̶e̶r̶-̶m̶o̶o̶d̶s̶,̶ ̶w̶h̶i̶c̶h̶ ̶i̶s̶ ̶w̶h̶y̶ ̶n̶o̶n̶e̶ ̶o̶f̶ ̶t̶h̶e̶m̶ ̶h̶a̶v̶e̶ ̶e̶v̶e̶r̶ ̶g̶o̶n̶e̶ ̶a̶f̶t̶e̶r̶ ̶m̶u̶t̶a̶n̶t̶s̶ ̶b̶e̶f̶o̶r̶e̶.̶.̶.̶.̶b̶u̶t̶ ̶t̶h̶a̶n̶k̶s̶ ̶t̶o̶ ̶t̶h̶e̶ ̶l̶a̶s̶t̶ ̶t̶w̶o̶ ̶a̶r̶c̶s̶ ̶a̶n̶d̶ ̶t̶h̶e̶ ̶s̶p̶e̶c̶i̶f̶i̶c̶ ̶r̶o̶l̶e̶ ̶D̶r̶u̶i̶g̶ ̶p̶l̶a̶y̶e̶d̶,̶ ̶h̶e̶ ̶n̶o̶w̶ ̶l̶i̶k̶e̶l̶y̶ ̶h̶a̶s̶ ̶j̶u̶s̶t̶ ̶E̶N̶O̶U̶G̶H̶ ̶i̶n̶s̶i̶g̶h̶t̶ ̶i̶n̶t̶o̶ ̶h̶o̶w̶ ̶t̶h̶e̶ ̶M̶a̶c̶h̶i̶n̶e̶ ̶w̶o̶r̶k̶s̶ ̶a̶n̶d̶ ̶h̶o̶w̶ ̶t̶o̶ ̶m̶a̶n̶i̶p̶u̶l̶a̶t̶e̶ ̶i̶t̶s̶ ̶c̶o̶n̶t̶r̶o̶l̶s̶ ̶t̶h̶a̶t̶ ̶n̶o̶w̶ ̶t̶h̶a̶t̶ ̶h̶e̶'̶s̶ ̶p̶i̶c̶k̶e̶d̶ ̶m̶u̶t̶a̶n̶t̶s̶ ̶a̶s̶ ̶t̶h̶e̶ ̶E̶t̶e̶r̶n̶a̶l̶s̶'̶ ̶n̶e̶w̶ ̶w̶h̶i̶t̶e̶ ̶w̶h̶a̶l̶e̶,̶ ̶h̶e̶ ̶c̶a̶n̶ ̶t̶w̶e̶a̶k̶ ̶t̶h̶e̶ ̶p̶a̶r̶a̶m̶e̶t̶e̶r̶s̶ ̶b̶y̶ ̶w̶h̶i̶c̶h̶ ̶t̶h̶e̶ ̶M̶a̶c̶h̶i̶n̶e̶ ̶d̶e̶f̶i̶n̶e̶s̶ ̶D̶e̶v̶i̶a̶n̶t̶s̶/̶E̶x̶c̶e̶s̶s̶ ̶D̶e̶v̶i̶a̶t̶i̶o̶n̶ ̶-̶ ̶a̶n̶d̶ ̶s̶i̶n̶c̶e̶ ̶t̶h̶e̶i̶r̶ ̶c̶o̶n̶n̶e̶c̶t̶i̶o̶n̶ ̶t̶o̶ ̶t̶h̶e̶ ̶M̶a̶c̶h̶i̶n̶e̶ ̶i̶s̶ ̶t̶h̶e̶ ̶m̶e̶c̶h̶a̶n̶i̶s̶m̶ ̶t̶h̶r̶o̶u̶g̶h̶ ̶w̶h̶i̶c̶h̶ ̶t̶h̶e̶ ̶E̶t̶e̶r̶n̶a̶l̶s̶'̶ ̶b̶i̶o̶l̶o̶g̶i̶c̶a̶l̶ ̶m̶u̶r̶d̶e̶r̶ ̶i̶m̶p̶e̶r̶a̶t̶i̶v̶e̶ ̶i̶s̶ ̶a̶i̶m̶e̶d̶ ̶a̶n̶d̶ ̶t̶r̶i̶g̶g̶e̶r̶e̶d̶.̶.̶.̶.̶.̶.̶t̶h̶i̶s̶ ̶w̶i̶l̶l̶ ̶t̶h̶e̶n̶ ̶r̶e̶c̶a̶l̶i̶b̶r̶a̶t̶e̶ ̶E̶t̶e̶r̶n̶a̶l̶s̶ ̶t̶o̶ ̶n̶o̶w̶ ̶l̶o̶o̶k̶ ̶a̶t̶ ̶m̶u̶t̶a̶n̶t̶s̶ ̶a̶n̶d̶ ̶g̶o̶ ̶K̶i̶l̶l̶ ̶K̶i̶l̶l̶ ̶M̶u̶r̶d̶e̶r̶ ̶B̶a̶b̶y̶ ̶o̶n̶ ̶s̶i̶g̶h̶t̶.̶
tl;dr - Mutants SHOULDN'T be classified as Deviants or anything the Eternals have anything to do with under NORMAL conditions, but the Brain Trust that is Eternals society accidentally whoopsied their way into making Druig their king. ̶A̶n̶d̶ ̶b̶e̶c̶a̶u̶s̶e̶ ̶D̶r̶u̶i̶g̶'̶s̶ ̶a̶ ̶f̶u̶c̶k̶i̶n̶g̶ ̶d̶i̶c̶k̶,̶ ̶h̶e̶'̶s̶ ̶b̶a̶s̶i̶c̶a̶l̶l̶y̶ ̶i̶n̶ ̶t̶h̶e̶ ̶p̶r̶o̶c̶e̶s̶s̶ ̶o̶f̶ ̶h̶a̶c̶k̶i̶n̶g̶ ̶t̶h̶e̶ ̶E̶t̶e̶r̶n̶a̶l̶s̶'̶ ̶m̶u̶r̶d̶e̶r̶-̶g̶e̶n̶e̶s̶ ̶t̶o̶ ̶t̶a̶r̶g̶e̶t̶ ̶m̶u̶t̶a̶n̶t̶s̶ ̶s̶o̶ ̶E̶t̶e̶r̶n̶a̶l̶s̶ ̶s̶o̶c̶i̶e̶t̶y̶ ̶w̶i̶l̶l̶ ̶b̶e̶ ̶t̶o̶o̶ ̶b̶u̶s̶y̶ ̶w̶a̶g̶i̶n̶g̶ ̶w̶a̶r̶ ̶o̶n̶ ̶m̶u̶t̶a̶n̶t̶s̶ ̶t̶o̶ ̶r̶e̶m̶e̶m̶b̶e̶r̶ ̶t̶h̶a̶t̶ ̶h̶e̶y̶,̶ ̶w̶e̶ ̶h̶a̶t̶e̶ ̶t̶h̶i̶s̶ ̶g̶u̶y̶ ̶o̶n̶ ̶a̶c̶c̶o̶u̶n̶t̶ ̶o̶f̶ ̶h̶e̶'̶s̶ ̶a̶ ̶f̶u̶c̶k̶i̶n̶g̶ ̶d̶i̶c̶k̶ ̶a̶n̶d̶ ̶w̶e̶ ̶s̶h̶o̶u̶l̶d̶ ̶d̶e̶f̶i̶n̶i̶t̶e̶l̶y̶ ̶d̶e̶t̶h̶r̶o̶n̶e̶ ̶h̶i̶m̶ ̶i̶n̶s̶t̶e̶a̶d̶ ̶o̶f̶ ̶l̶i̶k̶e̶,̶ ̶l̶e̶t̶ ̶h̶i̶m̶ ̶c̶a̶l̶l̶ ̶t̶h̶e̶ ̶s̶h̶o̶t̶s̶ ̶a̶n̶d̶ ̶d̶o̶ ̶s̶t̶u̶f̶f̶ ̶l̶i̶k̶e̶ ̶h̶a̶c̶k̶ ̶o̶u̶r̶ ̶m̶u̶r̶d̶e̶r̶-̶g̶e̶n̶e̶s̶ ̶f̶o̶r̶ ̶p̶e̶r̶s̶o̶n̶a̶l̶ ̶g̶a̶i̶n̶.̶
The "X-Gene" was created by the Celestials at the same time they made Eternals and Deviants. Eternals #1 (1976)