Ha, yes I went whole plant foods 13 years ago for health reasons and I've seen some of the things you're seeing over the years wrt Reddit's vegan group becoming filled with animal cruelty, yada.
What has changed over the years is the science has become much more settled and fewer people are worried you'll suffer a nutritional deficiency. @amacbean16 is raising 5 children on whole plants and her husband is a whole plant-recommending family physician. They are models of health. My physician, Douglas Souvignier at the ginormous Sutter Health center in Sunnyvale, went whole plants a few years after me and now he teaches classes on eating whole plants open to the public in the evenings there with other physicians.
The main worry is B12. It's a worry for animal food eaters too, especially over 50, but with sprayed & washed plants and chlorinated water (it comes from a bacteria in poop 💩), no one can get enough on a plant-based diet without supplementing. Just 1 tablet once a week of the sublingual (under the tongue) 2500mcg units they sell at Costco cheap and you're set.
Otherwise, if your diet includes a respectable amount of beans, fruit and veggies, it's pretty much impossible to be nutritionally deficient in anything (except Vitamin D if your skin doesn't get much sun).
Do you eat much pasta? A quick meal for us is one of the bean pastas, like this edamame pasta we get from Costco. They sound disgusting but they're sooo goooodddd. Even the kids scarf them down if we get whatever sauce is their fav.