Copyright infringement notice on Etsy

Hello,
I have been selling some homemade stuff on Etsy, such as t-shirts and some helmets both from Marvel and Star Wars - both owned by Disney to my surprise. I just got a notice that all of my sales were pulled because of copyright infringement. Obviously I didn't create the characters nor did I imply that. I see many bigger sellers online that obviously don't have license to sell what they sell, I am stumped as to why they came after me as I am a very small fish.
I was wondering if anyone here had any problems with Disney lawyers as of late? Are they cracking down on us in full force now? Is there some kind of loophole some sellers find to sell unimpeded?

Fox came down on the Jayne wool hat makers last year. If they don't exercise their control over their brand, copyright law can become invalid. It certainly does suck for makers...

Yeah, I heard about that. Is there nobody here that has any experience with this personally as a seller of SW stuff? Really?

Don't sell on etsy it like waving a big red flag and yelling.