Not to take away from the core of veganism, but we as individuals can do the bare minimum of living vegan to help lift the strain on the environment. Politics will do jack as we've seen many years over, so people need to act themselves and take matters in their own hands. Every bit counts, so dismissing veganism as a whole because individual choices don't matter is a weak argument. Change must come from somewhere after all.

Companies do need to change their ways, but so does the average consumer.

That is... also not true. Take any vegan milk alternative and the dairy version will be worse in terms of environmental strain and water consumption. Like, not even close. Even the "worst" vegan option will be better than dairy.

You can take any graph on this off the internet and will have this confirmed, but have a couple.

Edit: Plus advocating for animals to be kept better will not change anything about the end result: innocent animals are being kept in captivity, tortured, and killed. They don't give a shit if they have an eighth of a square meter more space to """live""".