I found this grammar structure
N1もN1なら、N2もN2だ
My book explanation says that it means both N1&N2 are terrible.
They provide this example of usage.
子どもが子どもなら、親も親だ。
Now, there is also this sentence, which I can't translate into English, please help.
こんなつまらない商品を、売るほうも売るほうなら、買うほうも買うほうだ。
Also, why the を particle?
Thanks a lot.