Thank you for contacting Roblox Customer Support for your inquiry.
We do understand your concern regarding removal of the catalog item from the Roblox that violates DMCA copyright policy. Roblox follows the DMCA process, so if the owner of any content believes that their content is being used on Roblox without permission, they can send us a DMCA takedown notice, which may result in Roblox removing the content and taking other action.
Unfortunately, Roblox can’t otherwise provide you with legal advice. You should consider consulting with an attorney if you have any questions about specific content you uploaded to Roblox.