That sounds like it can't be avoided as long as there's humans, but some humans actively chose to do it and it can absolutely be avoided, just by everyone choosing not to do it.

Overall in net, there is not much way around the fact that we have to reduce consumption and production of fish to end overfishing. Even fish farms often use wild caught fish as feed

Labels that get funding by producers paying to have them tend to not work out well. Massive conflict of interests emerge. Here's some articles ranging from 2013 to 2023 showing different problems with the MSC's labels

Scores of organisations have expressed concern that the MSC’s certification process does not properly account for bycatch, particularly of sharks and cetaceans. In 2018, a group of 66 conservation groups and academics accused the MSC of not paying enough attention to the protection of species not specifically targeted by fisheries.

https://www.theguardian.com/environment/2021/jul/26/blue-ticked-off-the-controversy-over-the-msc-fish-ecolabel

Report: Half of MSC-certified ‘sustainable’ tuna caught with controversial gear

Biologist Susanna Fuller, co-director of marine programs at Canada's Ecology Action Centre, agrees. "We know ... that blue stamp doesn't mean that you're sustainable," she says. When asked if consumers should choose MSC-labeled seafood, Fuller pauses. "It's a gamble," she says.

https://www.npr.org/2013/02/11/171376509/is-sustainable-labeled-seafood-really-sustainable