You can eat all the inferior substitutes, I'll stick to grass fed beef every day. There's no replacement for animal protein, it's the healthiest thing you can eat. Meat is well known to increase testosterone levels, promoting all sorts of beneficial effects on your metabolism and mental well being.
I wouldn't say eating meat is the healthiest thing you can eat.
It seems like most people need fiber for a diverse and resilient gut biome.
But the dangers of cholesterol are largely overblown.
Sugar, oxidation, insulin levels, and stress play a far more pervasive roles.
Statins are largely ineffective for preventing heart disease except for a small percentage of older white males.
There's also a low causal relationship between dietary cholesterol and the cholesterol found in your blood.
And most cholesterol in the human body is produced in the liver.
The biomechanics of the body are complex and difficult, but one underrated aspect of being able to produce meat in a lab is you would be able to repurpose that technology to produce human organs for people who need new kidneys, livers, hearts, lungs, etc.
It's a very valuable technology, even if you're not interested in eating it.