Just no! The MSRP of 6600 was this high only due to the launch during the crypto boom and GPU shortage. In a normal situation, it wouldn't sell at all. 3060 12GB had the same MSRP, but higher performance, more VRAM, and all the NVIDIA goodies, together with better drivers. Since 2 weeks I see the sales of 6600 at just below $200, so it's a much better reference point.
In other words, you're saying that one should under no circumstances compare similarly priced GPUs like 7600 and 6650 XT, but according to the seller's intent, compare against a worse-performing 6600. Preferably ignoring its $200 market price and sticking to its crypto-inflated MSRP from 2 years ago.
Also, you seem completely unaware of the fact that the 7600 is a rebranded 7600 XT that takes a full Navi 33 die. Just like its 6600 XT predecessor. It was an emergency decision taken when the Navi 3 performance was so far off the targets that as you can see the full Navi 33 can just barely beat the 6650 XT. 7600 is basically a mostly unsuccessful 6650 XT refresh in 6nm. The efficiency gain from 5+6nm that comes with 7900XTX and XT (and is still inferior to Ada) is nowhere to be found.