> owe their entire existence to plastics
I think that's fundamentally untrustable argument since a very similar one was used to justify slavery. "It's perplexing to see people jump on this stupid 'anti-slavery' mentality bandwagon when they probably own their entire existence to slavery and other forms of forced labor. Abolishing slavery will lead to societal collapse."
Just because it's true - much of modern life is utterly dependent on plastics - that doesn't justify a continued high dependency on plastics.
> Everything will get recycled eventually
And we're all dead in the end.
That "eventually" is hiding a lot. Like, what of the plastic in the water. How will that eventually be recycled? What effect does the plastic trash have on sea life, including discarded ("ghost") plastic fishing nets.
Given your indefinite "eventual" time-frame, you'll need to estimate the net future value of continuing with a lot of single-use plastics, vs. that of switching to another solution, where the overall advantages across a century may justify a decade-long expensive transition.
> People in the future will surely find a way to use what's in landfills again.
That's one-sided optimism. Flip it around, and people in the future will surely find a way to eliminate the need for single-use plastic.
> Now you know why plastic replaced glass containers in a majority of applications
We also know the history of "why" depends on cheap petroleum and ignoring the cost of waste management.
Like, we know why Freon (or HCFCs in general) replaced older refrigerants, only later to learn about the high cost due to ozone depletion.
We know the history of why plastic grocery bags mostly replaced paper, but the cost to the store didn't factor in the full cleanup costs or environmental impacts.