I’ve long since accepted my own use of plastic, and plastic pollution pales in comparison to that of SE asia, there’s a few other places but the region really does stand out for it. There’s a YouTube channel that goes about implementing trash interceptors in rivers, and the amount they pull out of a single river after a single storm before it gets to the ocean is frankly staggering.
Doesn’t mean I don’t try to avoid generating it when possible, just that I know when it comes to the stuff that ends up in the ocean all the west is essentially a drop in the bucket compared to big players in that area. I do use a lot of plastic, as
@Michi pointed out it’s literally impossible to avoid at the grocery store. In my parts that all goes to the trash which goes to a landfill. Probably the best case scenario with the exception of those places with a waste to energy generation plant, since it keeps it from getting into the oceans and concentrates it until future recycling methods and landfill resource extraction improves. Trying to truly recycle plastics currently is a bit of a fools errand. It works in perfect settings and with controlled variables, but unfortunately that isn’t the real world. You somehow have to separate any of about a dozen common polymers, clean god know what’s on them so they don’t pollute the whole batch, and then deal with the fact that the plastic loses plasticizers each time it’s reheated. It’s not impossible, but at least in the states a lot of places went “this is too complicated” and shipped it overseas where labor is cheaper. Some of it gets upcycled into shirts, carpets and so on. And a lot of it just gets dumped quietly.
My food storage is sit between deli containers and glass. Nothing goes into the plastic until it’s well into the danger zone (good thing I’m not a restaurant), nothing gets reheated in them. The reality is, quite literally every food stream is heavily polluted with microplastics, storing barely warm food in direct contact with it pales in comparison to say, drinking a bottle of water which is a leading source of it since water bottles are stored in variable temperatures, thrown around and stored for long periods which all exacerbate it, or getting takeout from a restaurant where they put a soup or curry into a deli container. Fruit, veg and seafood are all major sources of it. It’s in the rain, it’s in the air, you can absorb it from your skin from clothing.
The scale and scope of the issue is frankly staggering, I’ve accepted it can’t be avoided, and it’s best not to worsen the health concerns by adding stress to the situation. Avoid ordering takeout, particularly anything saucy that needs a plastic container to contain, avoid microwaving plastic, avoid putting leftovers that you wouldn’t be an uncomfortable temperature to spill on yourself in them and avoid bottled water, tea bags or wine which are all high in it.
What even is the solution? Tell developing countries they aren’t allowed to continue developing because they aren’t disposing of plastics properly? Even if we phase out plastics entirely in the west, it’ll unfortunately change nothing about the situation. It’ll still come in the fish we eat, the rain that falls, the air we breath, the crops fertilized with fish waste and watered by rain, and the animals that eat the crops. Unlike the leaded fuel crisis that caused an entire generations IQ before we banned its use, it isn’t a local catastrophe that our actions can stop. The ocean cleanup project is doing good work, and so are the trash diverter teams, but they definitely need more funding to help
At least there’s bacteria starting to breakdown plastics, which is going to cause a new era of issues. When it comes to PFAS we’re REALLY buggered
then it can’t hurt you. 
