The license doesn't prevent those leeches from succeeding. They will republish your app, whether it is fully proprietary or licensed under the GPLv3, and neither Google nor Apple will respond to takedown requests for apps. We get many reports of this behavior in an Android developer community I help moderate, it's pretty obvious there are a few known actors doing this with hundreds of apps, and the stores don't care.

So no, the license doesn't matter.