I'm in class, so I don't have time to fully illustrate why you have no idea what you're talking about. Physical damage isn't 'stronger' because it has more limitations.
1. Most physical fighters have to close the gap constantly.
2. Their attacks don't apply status effects.
3. There are abilities in the game that totally negate a physical damage class.
4. They usually have to run through or navigate a bunch of annoying terrain effects.
5. Their attacks can miss completely resulting in a huge tempo loss of AP and time.
This is just the ones off of the top of my head, and even if there are more, this is more than enough justification of why it's pretty balanced. It sounds like you just have a problem with the Necromancer school than anything.
Actually this is not really true.
1. Gap closers are plenty, cheap, and many of them don't event cost you damage (e.g. blitz attack or backlash). You're also leaving out rangers who don't need to move at all.
2. Except they do apply one of the most powerful CCs in the game - knockdown. Some scoundrel skills also have status effects (these aren't great but just to point out)
3. Except enemies using these are almost non existent and even when you face them they're usually not that difficult to work around
4. No, see 1)
5. Except I can probably count the enemies you hit with less than 90% chance with the fingers on one hand. Also, dodge applies to elemental weapons (staves and wands) too.
