Just so tired of clowns giving Bitcoin a bad name. The fact that Bitcoin does not belong to anyone or its not trademarked and can pick and choose who represents Bitcoin makes it a lot easier for scammers like this cryptomart okes to enter the market unchallenged until they made enough damage to catch up to them eventually.
I don't see how someone ripping off your website is meant to give bitcoin a bad name? As mentioned before, you'll have to contact his web hosting provider if he has stolen a unique design and is using it on his own site. He is technically damaging your brand so throw that in the email too. Do what you can, but don't waste too much time on these ripoffs and just try to improve your own shop.