I would push against this sort of anecdotal view. The circle of people we eat with (and therefore know the dietary restrictions of) tend to be quite low compared to all the people we meet with on a day to day. Additionally, "looking sick" is a vague enough assessment that simply knowing someone is a vegan may very easily cause you to be much more critical of their appearance, and vice versa you may see someone who looks sick to you and then pay more attention to their dietary habits than you ordinarily would. Another thing to note is that all dietary restriction lifestyles is subject to a noticeably higher rate of disordered eating or intestinal issue that leads to the person participating in the dietary change and therefore it may be important to first determine if the disordered eating or gut issue caused veganism vs the other way around.
That is to say: even though I am neutral towards veganism itself, your logic as to why meat is good reads to me as quite flawed and poorly reasoned around.
Let's put it another way, imagine some guy likes to pester you about your eating habits, says they are unhealthy, and that their diet is healthy. Well the burden of proof is on them and as someone who cares about staying fit, if the guy trying to convince me either looks like skin & bones, or is overweight, then they are already on shakey ground. This has been my first hand experience multiple times.
Ultimately my ancedote is not meant to be a counter-argument, but instead a reminder to those reading to touch grass. Because why wouldn't your personal experiences matter more than the anecdotes and misinformation spread by strangers online? (This applies to my own anecdote as well)
I just find that most people when confronted with a fairly straightforward way to mitigate massive environmental and global health problems (eat less meat), people will get up in arms and defensive and shut the conversation down immediately. They'll make all sorts of assumptions about what you're implying about them, which I feel like points to the fact that people in their deepest self know that it's somewhat wrong.
It's kinda funny is all, it's the same behavior I engaged in when people told me I should consider smoking less or not at all.
The moral arguments are pretty solid though. The amount of rainforest currently being clear cut to make way for cattle is insane. Ecosystem destruction is being fueled heavily by the demand for meat products. The US used to be covered in huge forests that were clear cut for cattle, way before any of us were born. Use of antibiotics is just one more aspect of why we should probably cut back heavily on beef.
The pricing does a good job of this, but I would encourage meat eaters to reduce consumption of beef products as much as possible. Maybe make it an occasional treat instead of the main course of every meal.
That sounds like the vegetarians I know. The vegans I know look like cancer patients.
Related, I know many “vegetarians” who are what I call effective vegans, meaning they eat vegan ~90% of the time, recognizing purity as a pointless pursuit.
I will continue eating meat, I believe it is *good* for both individual health and collective health. In fact the amount of vegans I've met in life who didn't look like they were suffering from some illness has been very rare, only solidifying my position on this.
I'm comfortable with meat prices going up if it resolves the antibiotics issue, but I'm unconvinced by the moral arguments you disguise as health arguments.