If survival is only for the fittest then all men weren’t created equal.
Survival is only for the fittest. No exceptions.
Life is all about survival. Survival is all about competition. There would be no point to there being a competition if we all were made exactly identical to each other. We may all be of the same general design, but where the environment is concerned, some of us are much better implemented than others. That’s why only the fittest will survive while even the fit, will perish.