The war on drugs has a lot more raids in the own territory while the war on terror has more bombings in foreign territory, so for now there are some major differences. However once using predator and reaper drones against citizens without any judicial oversight is normalized, that difference will be gone.

There are quite a few domestic impacts of the war on terror: domestic spying and the USA PATRIOT Act are two huge examples. In the context of "bankroll law enforcement while diminishing the civil rights of citizens" it's nearly identical to the war on drugs domestically.

In terms of domestic spying, it's hard to articulate any practical effect it's had though. People have certainly reacted to it (see the move to TLS everywhere, for example) but I can't actually think of any enforcement actions its linked to. There's almost certainly parallel construction out there, but compared to the war on drugs, which has lead to mandatory minimums, constant police harrassment, no knock warrants, etc, I'd have to concider the war on drugs the higher priority target for fighting.

I should have made my statement more carefully. I agree with you fundamentally; I see them as two heads of one beast, though.