If you adopt a utilitarian perspective I agree (and I also totally agree that this is a matter of philosophy, clearly the norms do not support my hot take). If only the end matters and not the reasons, I agree that the ethical quandary falls away.
I tend to think utilitarian ethics are quite useful for states or organizations, but I don’t think individual ethics are typically the utilitarian kind (though we are surely influenced by utilitarian analysis for example a lot of vegans are vegan for straight up environmental reason and therefore wouldn’t even need to contemplate the ethics of fake meat beyond environmental impact). I think there’s a more innate sense of ethics that makes me not want to eat something as vital and curious as a cow or a chicken. I’m not trying to reduce the total amount of harm in the world, I just don’t want to be the cause of the death of another entity when I can help it. Eating a vegan burger that looks and feels like a beef burger feels like symbolic support of a practice I don’t support. Perhaps if all beef were pseudo beef that would change things.