Do you believe in survival of the fittest in terms of intelligence, physicality and the ability to adapt ??

The concept of "survival of the fittest" is greatly misunderstood usually.
The question is, how does a species fit into an ecosystem?
If a species A has a reproduction rate of 1.01, and another B has 0.99, then after 100 generations the ratio A/B =7.4, and after 1000 generation, A/B = 500,000,000.
In other words, B is extinct after 1000 generations There's no pain, no fight, no violence. Species B simply disappears over time because it fits a tiny little bit less into the ecosystem.

Mostly I think.

Not anymore. We take care of others who are not able to do so themselves.

Yes.

Yes.

I believe that if we ALLOW survival of the fittest to become the criteria for survival, our world will become more primitive, and MUCH more cruel...but the human race will become much stronger.

Do you mean in terms of human society?

If I did I wouldn’t be here to have an opinion.

Very..

While we’re at it

Let’s remove all the warning labels and let Darwinism sort itself out

No. We're in the anthropocene- killers rule. Unless you mean the geopolitical situation. That's where killer's rule.

Maybe in early human times, but these days the people in power aren’t necessarily the most physically or intellectually fit.

Effeciency and mental fortitude, not artificial intelligence

ability to adapt

Yep

No, not at all because it's a myth. Take Donald J. Trump for example. He is not intelligent but somehow he survived for 78 years so far.