активизироваться(Racists and extreme nationalists are crawling out of the woodwork to protest at the sudden increase in the number of immigrants.4uzhoj)
повылазить на свет божий(to appear after being hidden or not active for a long time, especially in order to do something unpleasant: Racists and extreme nationalists are crawling out of the woodwork to protest at the sudden increase in the number of immigrants.4uzhoj)