Its not just eating plants i am talking about but the grand total of destruction.
Every breath of air you take, every sip of water, every footprint in the dirt. It is impossible for any being, herbivorous or not to live with no ecological cost. Every fart is methane. Your housing takes space other life could claim. Your body blocks light to reach the moss spores behind you and your lungs convert oxygen to co2 as we speak.
My philosophy is to personally measure the cost where i am aware, lower it where i can but accept that there will always be a cost. Enjoy life regardless so that costs is not wasted.
Were speaking on completely spiritual different levels it seems. I am not religious but to me system of nature itself is a bigger consciousness with other life (like us) just sub parts of it, harming another being equals harming myself. Not wrong on itself but an important part of what makes life what it is.
The keyword is balance and awareness. Life requires destruction to persist and continue but to much destruction and it seizes to be also.