The Air Force has not done dogfights since at least Vietnam. It is a defunct military style, like trench warfare.
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No.
There have been recent dogfights and there are countries that have never sent a pilot into a dogfight that are prepared to.
Dogfighting aircraft will be known to be obsolete a few years after it becomes true.
Drones are not ready, even if they are the coming thing.
Trench warfare isn't over either, all of these situations arise from the comparison of forces, when one side is overwhelming the war can be short, when the sides are evenly matched the war tends to be longer.
The best reason to reduce US armed forces(in sophistication, expense and numbers) is to promote more and longer wars.