Here’s what consumers have asked with answers from Etsy staff and previous consumers.
Based in hong kong, I'm unsure about if its handmade or not. https://www.etsy.com/ca/shop/RedStarSupplies?ref=hdr_shop_menu
You are lucky if they respond. Etsy are the worst customer support of any web platform. They will suspend you without warning and you could be in the streets by the click of a mouse. Ebay and arfire they will warn you multiple times if you violate anything. Not etsy. And they dont care of how good of a seller you are. One or two violations and yhou are a gone for good. Don't support them. They became the most arrogant platform there is.
I would have to say no, with LOTS of exceptions. In the past few years Etsy has allowed business to claim handmade if it meets certain criteria. I often see many items that claim to be handmade but I have seen them on Alibaba being sold in bulk. That being said I look very closely and have purchased some wonderfu items from great sellers. The biggest problem with Etsy is that they no longer protect customers from fraud (they say they are not liable) but in doing that lots and lots or resellers and counterfeit items have saturated Etsy' s marketplace. I would never buy anything "vintage" there. What I have seen you are getting thrift store rejects or modern fake. Buyer beware! Investigate all vendors carefully!
I am agree with Ramina. 90% is not hand made. All comes from Factories. When someone has over 8000's item don't you ask who made it. They are all over from Pakistan to turkey east to west up united state. Etsy is happy just to take your money and every 4 or 5 months closing one store to show off and if you have some money as a credit they take it too. No customer service, no respect no manor, they made policy just for FUN and they have FUN with our pocket. Stay far from them FAR FAR.