Theory of mind is a diverse field with many different views and consequences. I land in the 4e camp of epistemology, so I would say experience of insect are equally experiences of conciousness as human experiences. When you let go of human centric parameters the world takes on a very different visage. I liked this article about the 4e theory and it’s implication on the breaking down of the divide between plants and conciousness. https://worldsensorium.com/what-plants-are-saying-about-us/
I think you can certainly avoid some by avoiding plastic utensils and packaging. This also means no processed foods, which is a good move in every way. I don’t know if there’s a way to filter it out of tap water.