Yes, because there are now 8 billion people, and nature is on the brink of collapse.
> It's not good enough to tax and penalize bycatch
There are 5 mil. fishing boats, there is nobody who could reliably monitor them. Doesn't work. See Seaspiracy movie for an example.
> vegans start from the end goal
I became a vegan primarily due to environmental reasons. It's a logical conclusion when studying the issues of climate change, the anthropocene, deforestation and biodiversity loss.
It's a complicated problem, and you would have to study the issue yourself, not enough space here. You'd have to read a lot of text that goes against your beliefs. Not many people are able or ready to do that. Many rather prefer to stay ignorant (https://en.wikipedia.org/wiki/Cognitive_dissonance).
Some links to get you started (more articles and papers @ https://www.plantbaseddata.org):
Which Diet Has the Least Environmental Impact on Our Planet? A Systematic Review of Vegan, Vegetarian and Omnivorous Diets
https://www.mdpi.com/2071-1050/11/15/4110/htm
How Compatible Are Western European Dietary Patterns to Climate Targets? Accounting for Uncertainty of Life Cycle Assessments by Applying a Probabilistic Approach
https://www.mdpi.com/2071-1050/14/21/14449
Biodiversity conservation: The key is reducing meat consumption
https://pubmed.ncbi.nlm.nih.gov/26231772/
Livestock and climate change: what if the key actors in climate change are... cows, pigs, and chickens?
https://www.semanticscholar.org/paper/Livestock-and-climate-...
Without Changing Diets, Agriculture Alone Could Produce Enough Emissions to Surpass 1.5°C of Global Warming
https://www.wri.org/insights/without-changing-diets-agricult...
Agriculture production as a major driver of the Earth system exceeding planetary boundaries
https://www.researchgate.net/publication/320356605_Agricultu...
Avoiding meat and dairy is ‘single biggest way’ to reduce your impact on Earth
https://www.theguardian.com/environment/2018/may/31/avoiding...
If the world adopted a plant-based diet we would reduce global agricultural land use from 4 to 1 billion hectares
https://ourworldindata.org/land-use-diets https://ourworldindata.org/land-use https://ourworldindata.org/biodiversity
> Come back when you want to have an actual conversation
About how you want to keep eating meat even if it means total destruction of the environment? Do you have studies that show it's sustainable? Studies not paid for by meat & dairy industry?
Inside big beef’s climate messaging machine: confuse, defend and downplay
https://www.theguardian.com/environment/2023/may/03/beef-ind...
Why Right-Wingers Are So Afraid of Men Eating Vegetables
https://newrepublic.com/article/171781/meat-culture-war-cric...
The meat industry is borrowing tactics from Big Oil to obfuscate the truth about climate change
https://www.salon.com/2022/11/11/the-meat-industry-is-borrow...
The Big Beef With the Meat Industry’s Advertising Tactics
https://medium.com/@jodi_64782/the-big-beef-with-the-meat-in...
If you have the facts, bring it on. Don't talk to me about culture, though (https://www.youtube.com/watch?v=E7JE8j5Ncmw).