The wholesalers don't express any concerns about individuals with FFLs getting discounts; actually, many encourage it. In fact, most give such discounts to known Type 03 FFL holders (I am one) - a gen-ew-wine FFL license which expressly prohibits "dealing".
If it's legal, and encouraged, and nobody is complaining, and nobody feels cheated, what's your problem? Name ONE wholesaler who gave "kitchen table" FFLs wholesale prices and was upset about it.
Who is talking about Type 03 holders? Not me. Not anyone else. Just you.
The rest of us are talking about Type 01 dealers. Those who acquire a Type 01 FFL to buy and sell guns, but only use it to buy guns at wholesale for themselves (and perhaps others)instead of going to a legitimate dealer and paying retail.
Now, you're telling me those legitimate dealers aren't upset by this practice?