Everyone who is against restrictions on single use loves to cite that article to rail against them, but never seems to actually have read or understood the study:
1. While many indicators suggest a dominant contribution of plastics from Asian countries, there is very little data to document these assumptions and thoroughly verify the validity of our model. [0]
2. The study was not talking about all sources of plastic in the ocean, it is referring to plastic concentration in major rivers.
3. A good chunk of "western" waste and recycling is exported to Asia for processing. Yes, it may be mishandled there but it doesn't originate from there. Reducing generation will also reduce contamination.
4. Plastic ends up in more places than just rivers feeding ocean. Plastics accumulate and degrade into microplastics, and end up in lakes, fields, forests, parks - yes, within Europe as well.
I'm also not sure why you even think Europe is a leader here. Many African and Asian countries have been taxing or banning single use plastic for years.
https://en.wikipedia.org/wiki/Phase-out_of_lightweight_plast...
Your reading of "virtue signaling" and colonialism seems to be your own construction. I would bet most of people lobbying for this are lobbying because they want to see less plastic ending up in the environment, locally and globally, not because they care what you think.