

Doubling the already over the top european military budget isn’t going to fix any of the things in your first list.
https://en.wikipedia.org/wiki/List_of_countries_with_highest_military_expenditures
If european countries are concerned with USA instead of doubling their military budget they can simply cut and close the thousands USA military facilities all over europe.
The north african migrant crisis is a direct result of european countries among others fucking up africa and the middle east. Doubling the military budget has the potential to make thing even worst.