Where are you willing to pay more?

I just think it’s funny that some of the same people who tell me that unions are costing me more money on products are the same people who tell me to pay more for something from a small business than I’d pay at a big box company because the small business is local. If it’s worth paying more for the exact same item to a local business, even though the item was made by a multinational company, transported by a national company, and probably advertised by a foreign company, then why is it so evil that workers have organized to get better compensation for their work?