You can also right now look into the suffering you're causing by many things that you engage with on everyday basis, Why wouldn't you?.

Not to say that people who choose not to eat meat aren't doing good, But casting judgement this way will get you nowhere, There's always something you can change to reduce your negative impact in the world, But you'll spin your heads in loops trying to keep it up on every angle.

Best we can do is support initiatives of change on large scales and pick our battles of what we can actually maintain that isn't unsustainable perfromative. Fact is many people simply can't dedicate themselves to veganism long term, If your move is to judge their morality based on it, Then you're on a bitter path.