Yes, they are ignorant and yes it is an insult. Try not to be too insulted though, it's not just you; they draw their conclusions from stores selling made in China and other places. Everything is made overseas now...we're outsourced; even our American Christmas wrapping paper, ornies and cards are from China...our Christmas is all made and wrapped up by China! Only people that handcraft or have an eye for handcrafted understand quality and workmanship. I jokingly wanted to name my developing handcrafted business "This Aint Chiner" to keep people as such as you came across from wasting my time.
I designed and made a stunning greeting card that my friend liked...she said (enthusiastically!) she'd pay a dollar for it. When she left (without one), I was so discouraged, I cried and questioned what I was doing and almost quit doing anything handcrafted. My daughter brought my card to her job one day...I sold about 8 of them for 15 dollars each...to others that recognized design and craftsmanship.
Makes me wonder where this nations values went and if they will ever come back...they will pay a thousand bucks for a cheap purse with a designer name plastered on it, thats made in China, but snub handcrafted American talent and ingenuity.