Listen this is a controversial one and there is no one answer. So first of all I will say each farm has to make their own decision based on their ideology, scale of operation and access to resources.
That being said I try to be open-minded and not adhere to any one fixed ideology. I also try to weigh the pros and cons.
For instance, if you are a larger commercial grower and laying a row of plastic mulch allows you to integrate perennial species interxropped with your vegetable operation or cash crops and be able to not worry about their weeds and if this strategy produces a 10,50 or 500 acre polyculture in the next decade...go for it. You are doing far more good using that supply. After all frowning on a little plastic used in the garden seems a bit niece when plastic is in every business world wide at this point. So practice restraint.
On the other hand if your production strategy is to lay down a plastic mulch for every single Garden bed and transplant into it and rip it up every year for the dump...then maybe it's best to consider alternatives.
These include using weed barrier that can be moved from season to season over many years, or using rolled and crimped cover crops, hay and straw mulches, and biodegrade mulches.
What do we do? We work with all of these to find a solution to best fit our needs for a profitable and sustainable market garden.