"Separation of powers" is an incredibly nonsensical concept. If we live in a democracy then the democratically elected legislature should have total power. The idea that unelected judicial branch can dictate policy is indeed anti-democratic, the judicial branch should be wholly subervient to the legislature. The same is true of the executive branch, the executive branch also should be wholly subservient to the legislature. Giving a single guy control over the whole freaking military and making the branch roughly independent is also entirely nonsensical. It has happened historically in the past in several countries that the executive just tells the military to attack the legislature and the country collapses into a dictatorship. This literally almost happened in South Korea literally today, although the president backed down at last moment. Any country with separation of powers is already borderline a totalitarian dictatorship, since it just takes a single crazy executive to decide to pack the courts and disband the legislature solely for their own personal gain and the whole thing falls apart.