Restricting red meat quickly reduces your saturated fat consumption, which in turn, drops your cholesterol level. That's immensely healthier.
Restricting red meat most likely lowers your weight due to it being so calorically dense. Lowering weight leads to numerous health benefits.
Restricting red meat reduces heart disease, diabetes, stroke, etc. Not in any way healthier?
Restricting red meat lowers your chance of certain types of cancer.
You also need to be cautious of some of the more popular versions of plant-based proteins. For example, Beyond Meats Burgers and Impossible Burgers are both loaded with saturated fat.
4 oz of 93/7 fat ratio ground beef contains approx 5g sat fat
https://www.nutritionix.com/food/93-lean-beef
4oz Beyond Burger contains approx 5g sat fat as well
https://www.beyondmeat.com/products/the-beyond-burger/
Look at the side by side comparison for the regular vs Impossible Whopper:
https://www.bk.com/nutrition-explorer
You will find only 1g difference in SFA. I'm not arguing your point; in general, reducing intakes of certain cuts of red meats can be an effective strategy in reducing LDL cholesterol, but the average consumer doesn't know what to look for. Interestingly, the Beyond and Impossible "crumbles" do not have this issue, but these are also pre-cooked products.
I think processed carbs are worse than red meat, personally.
I agree, processed CHO (white rice, added sugars, enriched flour pasta, bread, crackers, tortillas) all break down and convert to glucose rapidly. Post-prandial glucose levels, even in non DM patients, still show there is a heavy burden placed on the body to cover with increased insulin production.
It's no wonder, after decades of eating an American's highly processed CHO diet, an individual could start to see some insulin resistance. The lack of fiber in processed CHO (along with the spiking glucs, followed by a quick drop from insulin production) means we want to pile up large portions of processed CHO to get any satiety, often leading to weight gain/obesity. And to the point Rifle made about SFA - these can also increase insulin resistance, so DM patients are advised to limit intakes to 5% - 10% total kcals (depending on which source you reference, AHA, NLA or WHO).