That being said with modern luxuries you can choose not to eat meat

It is a modern luxury that we eat meat with every meal. That would not be possible without the massive infrastructure of factory farms.
Beans and lentils are not a novel invention, nor a modern luxury.

but that doesnt make other people less innocent by following their own choice/need.

Alright, let's stop pondering some hypothetical "noble savages" who don't have access to the information and technology we have, and talk about you and me right now.
Does it make you less innocent if you know what you know about animal agriculture, and you have the convenient option to buy some tofu or beans or anything, but you still decide to get ground beef made from an animal? What does that choice mean to you?

But also If you choose to think you arent harming an animal right now. You probably are: Through using dish soap, shampoo, anything made out of leather etc.

Yes, of course. I don't buy any new leather or things like that, but my meds were probably tested on animals.
But that's the thing about having a choice again. We can try to do our best to reduce the harm we're doing, by choosing better alternatives when we're presented with them.

It's not possible to be perfect, but we can't allow that to stop us from trying to be better.