If anyone in the US ever wanted to become vegetarian, I suggest they drive through Greeley, Colorado past the lines of cattle cars waiting to enter the slaughterhouses. Their nose may curse them, however.
If you want to start eating meat again, I'd recommend you come to France's Morvan to see Charolais cattle in the green pastures, living a semi-wild life away from any stress. Or in the Alps, where the cows spend their summer eating grass and flowers outside, with only a guard dog taking care they don't get lost.
Because vegetarianism is mainly a habit of the wealthy in the US, it may even increase the share of industrial farming, as the ethical farmers lose their natural customers with enough spending power to buy their products.
First of all, eating at McDonalds is 100% optional and nobody is pretending anything, so calm yourself down. Lots of farmers still raise cattle this way.
Omnivores definitely can find meat raised in fairly decent conditions [1] and at an affordable price (remember also than omnivores don't eat only meat). Just ask your trusted butcher about the origin of the meat or read the fucking tag showing the origin of the product.
[1] On the other hand, not all the fruits that vegans happily consume where cultured in "utopia", but for some reason we never talk about that.
Doesn't mean omnivores don't also consume said fruit, as you said, "remember than omnivores don't eat only meat".
Meat agriculture leads to:
- climate change
- food price inflation
- pandemics
- antibiotic resistance
- vulnerable workforce exploitation
- and, of course, animal cruelty