Virtually all of the "migrants" coming into Europe are males.
However, unless they are interbreeding through rape, or the small percent of the migrants which are women are continually pregnant, or there is a massive increase in race mixing (all three of which are not happening) this is a 1-2 generation problem, demographically speaking.
(I anticipate that most people will misunderstand what I'm saying here, or will say I support it somehow or something, which is not true)
Fair point.