Should the military combine the Navy SEALs, Delta Force, Rangers and all other Special Ops into one separate branch of service?

There are subtle distinctions in mission and capabilities that would be lost if all Special Ops services were combined into one. At least in the way I understand them. For example, would the combined service perform training and support for popular forces like the Army Special Forces? Would the combined service focus only on direct action such as the Navy Seals? Yes, it's useful for them to coordinate and cooperate, but I think that something would be lost.

No, they should not but they should maintain a close relationship. It is very important, not every mission is a good fit for every unit. This is really a great conversation to have over a few beers. However, it is a great conversation, but it is not one for CNN they don't have the clearance!

They sort of are an independent branch of the military in practice. All SOF fall under USSOCOM which coordinates their global activities and a large part of their funding. However, the individual services still need organic SOF assets to accomplish their mission. That's why SOCOM stops just short of being an actual independent branch.