Considering the current state of recycling, it may be better to just throw our plastics away instead of putting them in recycling bins. With China turning away our recycling, some cities have started burning them (according to recent headlines - I don't have a source). I would think that would be worse for our environment that putting them in landfills.
According to the study by the Helmholtz Centre for Environmental Research [1], 90% of ocean waste comes from 10 rivers - 8 in Asia and 2 in Africa. I'm not sure if what we do in the U.S. and Europe will have much impact on the oceans.
[1] https://www.weforum.org/agenda/2018/06/90-of-plastic-polluti...