Are meat substitutes better for the environment than meat?

For most of vegan and animal rights activist history, the focus has been on morals: explaining and showing the horrors we inflict on animals in the name of meat and dairy. Then at some point it became, primarily, an environmental issue, closely tied with reducing carbon footprints and emissions etc.

Reducing animal suffering, by any means, is great, and this method has worked somewhat, but my concern is the lack of ethical consideration. Those who speak out against animal cruelty seem to have been pushed aside so as not to spook the normies.

Tofy and mycoprotein are very low on footprint, and have the best protein profile.

Chicken is mostly factory farmed, pretty horremdous even if it beats beef and pork in terms of global warming byproduct footprint. Furthermore, it's largely pumped full of hormones, and contaminated feed/medecines which impart toxic heavy metals such as arsenic on the consumer. All in all, this industry takes a large chunk of blame for the obesity epidemic, as these hormones very much have an effect on the consumer.